#645D13#645D13

#645D13 is a mid, moderate yellow. Relative luminance 0.106; OKLCH L 47.1% C 0.091 H 103.7°. Best body text is #FFFFFF at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#645D13
RGB	rgb(100, 93, 19)
HSL	hsl(55, 68%, 23%)
HSV	hsv(55, 81%, 39%)
CMYK	cmyk(0%, 7%, 81%, 60.8%)
CIE-LAB	lab(38.87, -6.22, 40.39)
CIE-LCH	lch(38.87, 40.86, 98.76°)
OKLab	oklab(47.09% -0.0216 0.0883)
OKLCH	oklch(47.09% 0.091 103.7)
XYZ	xyz(9.2878, 10.5854, 2.1699)
Luminance	0.1058 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645D13 #131A64

analogous

#643413 #645D13 #426413

triadic

#645D13 #13645D #5D1364

tetradic

#645D13 #136434 #131A64 #641342

square

#645D13 #136434 #131A64 #641342

split-complementary

#645D13 #134264 #341364

monochromatic

#1A1805 #312D09 #645D13 #978D1D #CBBD27

Accessibility & contrast

On white

6.74

#645D13 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#645D13 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645D13

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645D13	#FFFFFF	#000000	##FFFFFF
##645D13	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)

#665A04

Deuteranopia (green-blind)

#685D19

Tritanopia (blue-blind)

#6C564F

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #645d13;
/* rgb */ color: rgb(100, 93, 19);
/* oklch */ color: oklch(47.1% 0.091 103.7);

Tailwind

colors: {
  custom: {
    50: '#938a58',
    500: '#645d13',
    950: '#000000',
  },
}

SCSS

$custom: #645d13;
$custom-light: #938a58;
$custom-dark: #000000;

JSON

{
  "hex": "#645d13",
  "rgb": {
    "r": 100,
    "g": 93,
    "b": 19
  },
  "hsl": {
    "h": 54.815,
    "s": 68.067,
    "l": 23.333
  },
  "oklch": {
    "l": 0.47092,
    "c": 0.09091,
    "h": 103.7
  },
  "luminance": 0.10585
}

Semantic roles & 50–950 ramp

primary

#645D13

secondary

#37409C

accent

#4CEB3D

background

#F9F8F5

surface

#F2F0E9

border

#CCCBC5

text

#0D0B03

muted

#7E7C78

Preview Lab

Preview with #645D13

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

Preview Lab → · Contrast checker → · Palette generator →