#645813#645813

#645813 is a mid, moderate yellow. Relative luminance 0.097; OKLCH L 45.9% C 0.086 H 98.9°. Best body text is #FFFFFF at 7.13:1 contrast (WCAG AA passes).

Color values

HEX	#645813
RGB	rgb(100, 88, 19)
HSL	hsl(51, 68%, 23%)
HSV	hsv(51, 81%, 39%)
CMYK	cmyk(0%, 12%, 81%, 60.8%)
CIE-LAB	lab(37.36, -3.28, 38.99)
CIE-LCH	lch(37.36, 39.13, 94.82°)
OKLab	oklab(45.89% -0.0133 0.0853)
OKLCH	oklch(45.89% 0.086 98.9)
XYZ	xyz(8.8632, 9.7362, 2.0284)
Luminance	0.0974 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645813 #131F64

analogous

#642F13 #645813 #476413

triadic

#645813 #136458 #581364

tetradic

#645813 #13642F #131F64 #641347

square

#645813 #13642F #131F64 #641347

split-complementary

#645813 #134764 #2F1364

monochromatic

#1A1705 #312B09 #645813 #97851D #CBB327

Accessibility & contrast

On white

7.13

#645813 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#645813 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #645813

7.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645813	#FFFFFF	#000000	##FFFFFF
##645813	1.00	7.13	2.95	7.13
#FFFFFF	7.13	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#615605

Deuteranopia (green-blind)

#655A18

Tritanopia (blue-blind)

#6C514B

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #645813;
/* rgb */ color: rgb(100, 88, 19);
/* oklch */ color: oklch(45.9% 0.086 98.9);

Tailwind

colors: {
  custom: {
    50: '#938657',
    500: '#645813',
    950: '#000000',
  },
}

SCSS

$custom: #645813;
$custom-light: #938657;
$custom-dark: #000000;

JSON

{
  "hex": "#645813",
  "rgb": {
    "r": 100,
    "g": 88,
    "b": 19
  },
  "hsl": {
    "h": 51.111,
    "s": 68.067,
    "l": 23.333
  },
  "oklch": {
    "l": 0.45894,
    "c": 0.08636,
    "h": 98.9
  },
  "luminance": 0.09736
}

Semantic roles & 50–950 ramp

primary

#645813

secondary

#37469C

accent

#57EB3D

background

#F9F8F5

surface

#F2EFE9

border

#CCCAC5

text

#0D0B03

muted

#7E7C78

Preview Lab

Preview with #645813

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

Preview Lab → · Contrast checker → · Palette generator →