Information about #664F0A color

#664F0A color image

Basic facts about this digital color

In the Register's classification, #664F0A belongs to the Yellow Color Family, featuring High Saturation and Dark brightness. In numbers: rgb(102, 79, 10) (40% red, 31% green, 3.9% blue), or CMYK 0 / 9 / 36 / 60 for print. Curious how these numbers work? Read our RGB color codes guide.

A strongly colored sunny yellow, #664F0A leans clearly toward the dark side. Expect to see shades like this in night-mode interfaces and high-contrast pairings with light text. In The Official Register of Color Names it is practically indistinguishable from Olive Brown (#645403). Its next-closest registered neighbors are Mud Brown (#60460F) and Violin Brown (#674403).

The recipe behind #664F0A is rgb(102, 79, 10), with red as the dominant ingredient. If you plan to put text on a #664F0A background, choose white — the contrast ratio is 7.8:1 (passing WCAG AAA), while black manages only 2.7:1. On paper it relies strongly on black ink (K:60), so proof dark layouts before a large print run. No one has named #664F0A so far. Register a name for it and it becomes a permanent record.

#664F0A color variations

View this color variations of tints, shades, tones and hues.

#664F0A color tints

Tints look brighter, pastel, and less intense.
#664F0A

Color has no name
#AE8711

Color has no name
#E9B825

Color has no name
#F0D06E

Color has no name
#F7E7B6

Color has no name
White

#FFFFFF

#664F0A color shades

Shades look darker, richer, and more solid.
#664F0A

Color has no name
#513F08

Color has no name
#3D2F06

Color has no name
#281F04

Color has no name
#140F02

Color has no name
Black

#000000

#664F0A color tones

Tones looks more sophisticated and complex than base colors.
#664F0A

Color has no name
#745D18

Color has no name
#7E692B

Color has no name
#837342

Color has no name
#837A5E

Color has no name
Grey

#808080

#664F0A color hues

A hue refers to the basic neighbors of color and is variation of base color on the color wheel.
#0E660A

Color has no name
#33660A

Color has no name
#58660A

Color has no name
#664F0A

Color has no name
#662A0A

Color has no name
#660A0E

Color has no name
#660A33

Color has no name

#664F0A color harmonies

Color harmonies are pleasing color schemes created according to their position on a color wheel.

Complementary

Complementary color schemes are made by picking two opposite colors con the color wheel. They appear vibrant near to each other.

Complementary color schemes
#664F0A
#664F0A

Color has no name

#0A2166
#0A2166

Color has no name

Split complementary

Split complementary schemes are like complementary but they uses two adiacent colors of the complement. They are more flexible than complementary ones.

Split complementary color scheme
#664F0A
#664F0A

Color has no name

#210A66
#210A66

Color has no name

#0A4F66
#0A4F66

Color has no name

Analogous

Analogous color schemes are made by picking three colors that are next to each other on the color wheel. They are perceived as calm and serene.

Analogous color scheme
#4F660A
#4F660A

Color has no name

#664F0A
#664F0A

Color has no name

#66210A
#66210A

Color has no name

Triadic

Triadic color schemes are created by picking three colors equally spaced on the color wheel. They appear quite contrasted and multicolored.

Triadic color scheme
#664F0A
#664F0A

Color has no name

#0A664F
#0A664F

Color has no name

#4F0A66
#4F0A66

Color has no name

Tetradic

Tetradic color schemes are made form two couples of complementary colors in a rectangular shape on the color wheel.

Tetradic color scheme
#664F0A
#664F0A

Color has no name

#21660A
#21660A

Color has no name

#0A2166
#0A2166

Color has no name

#4F0A66
#4F0A66

Color has no name

Square

Square color schemes are like tetradic arranged in a square instead of rectangle. Colors appear even more contrasting.

Square color scheme
#664F0A
#664F0A

Color has no name

#0A6621
#0A6621

Color has no name

#0A2166
#0A2166

Color has no name

#660A4F
#660A4F

Color has no name

Nearest named colors to #664F0A

The closest officially registered color names in the Register, ordered by similarity — your shade’s neighborhood is already being claimed.

Olive Brown color link
Olive Brown

#645403

Mud Brown color link
Mud Brown

#60460F

Violin Brown color link
Violin Brown

#674403

Deep Gold color link
Deep Gold

#594E00

Greeny Brown color link
Greeny Brown

#696006

Deep Olive color link
Deep Olive

#595900

Sepia color link
Sepia

#704214

Green Brown color link
Green Brown

#544E03

Greenish Brown color link
Greenish Brown

#696112

Deep Amber color link
Deep Amber

#594300

Field Drab color link
Field Drab

#6C541E

Saratoga color link
Saratoga

#555B10

#664F0A color backgrounds & wallpapers

Download color wallpaper / background for your Desktop PC, Tablet or Mobile phone.

#664F0A color image #664F0A color ORCN HD wallpaper 3840x2160 (Desktop)
#664F0A color image #664F0A color ORCN HD wallpaper 1170x2532 (Mobile)
#664F0A color image #664F0A color solid HD wallpaper 3840x2160 (Desktop)
#664F0A color image #664F0A color solid HD wallpaper 1170x2532 (Mobile)

Conversions between color systems and etc.

  • HEX#664F0A
  • RGB102, 79, 10
  • CMYK0, 9, 36, 60
  • CSSrgb(102, 79, 10)
  • HSL45°, 82%, 22%
  • HSL Precise45°, 82.143%, 21.961%
  • HSV45°, 90%, 40%
  • HSB45°, 90%, 40%
  • Normalized R (0.0–1.0)0.400
  • Normalized G (0.0–1.0)0.310
  • Normalized B (0.0–1.0)0.039
  • GLSLvec3(0.400, 0.310, 0.039)
  • GLSL with alphavec4(0.400, 0.310, 0.039, 1.000)
  • HLSL / Metalfloat3(0.400, 0.310, 0.039)
  • Percentage of Red in RGB40%
  • Percentage of Green in RGB31%
  • Percentage of Blue in RGB3.9%
  • Color Family (Hue)Yellow
  • Saturation FamilyHigh Saturation
  • Lightness FamilyDark
  • HEX ID664F0A
  • DECIMAL ID6704906
  • Name LengthThis color has no name
  • This page visited897 times
  • Counting from2025-01-01

Copyright © 2021-2026 The Official Register of Color Names. All Rights Reserved.