#645C30#645C30

#645C30 is a mid, moderate yellow. Relative luminance 0.106; OKLCH L 47.2% C 0.064 H 99.2°. Best body text is #FFFFFF at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#645C30
RGB	rgb(100, 92, 48)
HSL	hsl(51, 35%, 29%)
HSV	hsv(51, 52%, 39%)
CMYK	cmyk(0%, 8%, 52%, 60.8%)
CIE-LAB	lab(38.86, -3.48, 26.31)
CIE-LCH	lch(38.86, 26.54, 97.53°)
OKLab	oklab(47.17% -0.0102 0.0628)
OKLCH	oklch(47.17% 0.064 99.2)
XYZ	xyz(9.6165, 10.5774, 4.3308)
Luminance	0.1058 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645C30 #303864

analogous

#644230 #645C30 #526430

triadic

#645C30 #30645C #5C3064

tetradic

#645C30 #306442 #303864 #643052

square

#645C30 #306442 #303864 #643052

split-complementary

#645C30 #305264 #423064

monochromatic

#15130A #3B361C #645C30 #8D8244 #B1A45D

Accessibility & contrast

On white

6.74

#645C30 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#645C30 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645C30

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645C30	#FFFFFF	#000000	##FFFFFF
##645C30	1.00	6.74	3.12	6.74
#FFFFFF	6.74	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635A2C

Deuteranopia (green-blind)

#665D32

Tritanopia (blue-blind)

#6B5652

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #645c30;
/* rgb */ color: rgb(100, 92, 48);
/* oklch */ color: oklch(47.2% 0.064 99.2);

Tailwind

colors: {
  custom: {
    50: '#918a69',
    500: '#645c30',
    950: '#000000',
  },
}

SCSS

$custom: #645c30;
$custom-light: #918a69;
$custom-dark: #000000;

JSON

{
  "hex": "#645c30",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 48
  },
  "hsl": {
    "h": 50.769,
    "s": 35.135,
    "l": 29.02
  },
  "oklch": {
    "l": 0.47173,
    "c": 0.06362,
    "h": 99.2
  },
  "luminance": 0.10577
}

Semantic roles & 50–950 ramp

primary

#645C30

secondary

#5A6395

accent

#6ECB5D

background

#F9F8F6

surface

#F1F0EB

border

#CBCBC6

text

#0D0B06

muted

#7E7C7A

Preview Lab

Preview with #645C30

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

Preview Lab → · Contrast checker → · Palette generator →