#644F0F#644F0F

#644F0F is a dark, moderate yellow. Relative luminance 0.083; OKLCH L 43.8% C 0.082 H 89.2°. Best body text is #FFFFFF at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#644F0F
RGB	rgb(100, 79, 15)
HSL	hsl(45, 74%, 23%)
HSV	hsv(45, 85%, 39%)
CMYK	cmyk(0%, 21%, 85%, 60.8%)
CIE-LAB	lab(34.67, 1.96, 38.05)
CIE-LCH	lch(34.67, 38.10, 87.06°)
OKLab	oklab(43.76% 0.0012 0.0824)
OKLCH	oklch(43.76% 0.082 89.2)
XYZ	xyz(8.1382, 8.3363, 1.6323)
Luminance	0.0834 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644F0F #0F2464

analogous

#64240F #644F0F #4F640F

triadic

#644F0F #0F644F #4F0F64

tetradic

#644F0F #0F6424 #0F2464 #640F4F

square

#644F0F #0F6424 #0F2464 #640F4F

split-complementary

#644F0F #0F4F64 #240F64

monochromatic

#1B1504 #2F2507 #644F0F #997917 #CEA31F

Accessibility & contrast

On white

7.87

#644F0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#644F0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644F0F

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644F0F	#FFFFFF	#000000	##FFFFFF
##644F0F	1.00	7.87	2.67	7.87
#FFFFFF	7.87	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#594E03

Deuteranopia (green-blind)

#5E5413

Tritanopia (blue-blind)

#6D4743

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #644f0f;
/* rgb */ color: rgb(100, 79, 15);
/* oklch */ color: oklch(43.8% 0.082 89.2);

Tailwind

colors: {
  custom: {
    50: '#948054',
    500: '#644f0f',
    950: '#000000',
  },
}

SCSS

$custom: #644f0f;
$custom-light: #948054;
$custom-dark: #000000;

JSON

{
  "hex": "#644f0f",
  "rgb": {
    "r": 100,
    "g": 79,
    "b": 15
  },
  "hsl": {
    "h": 45.176,
    "s": 73.913,
    "l": 22.549
  },
  "oklch": {
    "l": 0.43759,
    "c": 0.08241,
    "h": 89.2
  },
  "luminance": 0.08336
}

Semantic roles & 50–950 ramp

primary

#644F0F

secondary

#324C9D

accent

#65F137

background

#F9F7F5

surface

#F2EEE8

border

#CCC9C4

text

#0E0A03

muted

#7E7C78

Preview Lab

Preview with #644F0F

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

Preview Lab → · Contrast checker → · Palette generator →