#645C1E#645C1E

#645C1E is a mid, moderate yellow. Relative luminance 0.105; OKLCH L 46.9% C 0.082 H 101.9°. Best body text is #FFFFFF at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#645C1E
RGB	rgb(100, 92, 30)
HSL	hsl(53, 54%, 25%)
HSV	hsv(53, 70%, 39%)
CMYK	cmyk(0%, 8%, 70%, 60.8%)
CIE-LAB	lab(38.65, -5.02, 35.51)
CIE-LCH	lch(38.65, 35.86, 98.05°)
OKLab	oklab(46.94% -0.0169 0.0802)
OKLCH	oklch(46.94% 0.082 101.9)
XYZ	xyz(9.3174, 10.4577, 2.7558)
Luminance	0.1046 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645C1E #1E2664

analogous

#64391E #645C1E #49641E

triadic

#645C1E #1E645C #5C1E64

tetradic

#645C1E #1E6439 #1E2664 #641E49

square

#645C1E #1E6439 #1E2664 #641E49

split-complementary

#645C1E #1E4964 #391E64

monochromatic

#181607 #353110 #645C1E #93872C #C2B33A

Accessibility & contrast

On white

6.79

#645C1E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#645C1E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645C1E

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645C1E	#FFFFFF	#000000	##FFFFFF
##645C1E	1.00	6.79	3.09	6.79
#FFFFFF	6.79	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#655916

Deuteranopia (green-blind)

#675D22

Tritanopia (blue-blind)

#6C554F

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #645c1e;
/* rgb */ color: rgb(100, 92, 30);
/* oklch */ color: oklch(46.9% 0.082 101.9);

Tailwind

colors: {
  custom: {
    50: '#93895d',
    500: '#645c1e',
    950: '#000000',
  },
}

SCSS

$custom: #645c1e;
$custom-light: #93895d;
$custom-dark: #000000;

JSON

{
  "hex": "#645c1e",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 30
  },
  "hsl": {
    "h": 53.143,
    "s": 53.846,
    "l": 25.49
  },
  "oklch": {
    "l": 0.46942,
    "c": 0.08195,
    "h": 101.9
  },
  "luminance": 0.10457
}

Semantic roles & 50–950 ramp

primary

#645C1E

secondary

#454F99

accent

#5BDD4B

background

#F9F8F5

surface

#F2F0E9

border

#CCCBC5

text

#0D0B04

muted

#7E7C79

Preview Lab

Preview with #645C1E

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

Preview Lab → · Contrast checker → · Palette generator →