#645E19#645E19

#645E19 is a mid, moderate yellow. Relative luminance 0.108; OKLCH L 47.4% C 0.088 H 104.3°. Best body text is #FFFFFF at 6.65:1 contrast (WCAG AA passes).

Color values

HEX	#645E19
RGB	rgb(100, 94, 25)
HSL	hsl(55, 60%, 25%)
HSV	hsv(55, 75%, 39%)
CMYK	cmyk(0%, 6%, 75%, 60.8%)
CIE-LAB	lab(39.22, -6.50, 38.32)
CIE-LCH	lch(39.22, 38.87, 99.62°)
OKLab	oklab(47.38% -0.0217 0.0852)
OKLCH	oklch(47.38% 0.088 104.3)
XYZ	xyz(9.4341, 10.7853, 2.5043)
Luminance	0.1079 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645E19 #191F64

analogous

#643919 #645E19 #456419

triadic

#645E19 #19645E #5E1964

tetradic

#645E19 #196439 #191F64 #641945

square

#645E19 #196439 #191F64 #641945

split-complementary

#645E19 #194564 #391964

monochromatic

#181706 #33300D #645E19 #958C25 #C6BA31

Accessibility & contrast

On white

6.65

#645E19 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#645E19 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645E19

6.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645E19	#FFFFFF	#000000	##FFFFFF
##645E19	1.00	6.65	3.16	6.65
#FFFFFF	6.65	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#675B0E

Deuteranopia (green-blind)

#695E1E

Tritanopia (blue-blind)

#6C5750

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #645e19;
/* rgb */ color: rgb(100, 94, 25);
/* oklch */ color: oklch(47.4% 0.088 104.3);

Tailwind

colors: {
  custom: {
    50: '#938b5b',
    500: '#645e19',
    950: '#000000',
  },
}

SCSS

$custom: #645e19;
$custom-light: #938b5b;
$custom-dark: #000000;

JSON

{
  "hex": "#645e19",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 25
  },
  "hsl": {
    "h": 55.2,
    "s": 60,
    "l": 24.51
  },
  "oklch": {
    "l": 0.47378,
    "c": 0.08791,
    "h": 104.3
  },
  "luminance": 0.10785
}

Semantic roles & 50–950 ramp

primary

#645E19

secondary

#3F469A

accent

#51E345

background

#F9F8F5

surface

#F2F0E9

border

#CCCBC5

text

#0D0B04

muted

#7E7C79

Preview Lab

Preview with #645E19

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

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