#645A1E#645A1E

#645A1E is a mid, moderate yellow. Relative luminance 0.101; OKLCH L 46.5% C 0.080 H 99.8°. Best body text is #FFFFFF at 6.95:1 contrast (WCAG AA passes).

Color values

HEX	#645A1E
RGB	rgb(100, 90, 30)
HSL	hsl(51, 54%, 25%)
HSV	hsv(51, 70%, 39%)
CMYK	cmyk(0%, 10%, 70%, 60.8%)
CIE-LAB	lab(38.05, -3.85, 34.88)
CIE-LCH	lch(38.05, 35.09, 96.29°)
OKLab	oklab(46.46% -0.0136 0.0789)
OKLCH	oklch(46.46% 0.08 99.8)
XYZ	xyz(9.1464, 10.1158, 2.6988)
Luminance	0.1012 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645A1E #1E2864

analogous

#64371E #645A1E #4B641E

triadic

#645A1E #1E645A #5A1E64

tetradic

#645A1E #1E6437 #1E2864 #641E4B

square

#645A1E #1E6437 #1E2864 #641E4B

split-complementary

#645A1E #1E4B64 #371E64

monochromatic

#181507 #353010 #645A1E #93842C #C2AF3A

Accessibility & contrast

On white

6.95

#645A1E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#645A1E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645A1E

6.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645A1E	#FFFFFF	#000000	##FFFFFF
##645A1E	1.00	6.95	3.02	6.95
#FFFFFF	6.95	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635716

Deuteranopia (green-blind)

#665B21

Tritanopia (blue-blind)

#6C534E

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #645a1e;
/* rgb */ color: rgb(100, 90, 30);
/* oklch */ color: oklch(46.5% 0.080 99.8);

Tailwind

colors: {
  custom: {
    50: '#93885d',
    500: '#645a1e',
    950: '#000000',
  },
}

SCSS

$custom: #645a1e;
$custom-light: #93885d;
$custom-dark: #000000;

JSON

{
  "hex": "#645a1e",
  "rgb": {
    "r": 100,
    "g": 90,
    "b": 30
  },
  "hsl": {
    "h": 51.429,
    "s": 53.846,
    "l": 25.49
  },
  "oklch": {
    "l": 0.46464,
    "c": 0.08001,
    "h": 99.8
  },
  "luminance": 0.10115
}

Semantic roles & 50–950 ramp

primary

#645A1E

secondary

#455199

accent

#60DD4B

background

#F9F8F5

surface

#F2EFE9

border

#CCCAC5

text

#0D0B04

muted

#7E7C79

Preview Lab

Preview with #645A1E

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →