#645F1E#645F1E

#645F1E is a mid, moderate yellow. Relative luminance 0.110; OKLCH L 47.7% C 0.085 H 104.9°. Best body text is #FFFFFF at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#645F1E
RGB	rgb(100, 95, 30)
HSL	hsl(56, 54%, 25%)
HSV	hsv(56, 70%, 39%)
CMYK	cmyk(0%, 5%, 70%, 60.8%)
CIE-LAB	lab(39.56, -6.77, 36.45)
CIE-LCH	lch(39.56, 37.08, 100.52°)
OKLab	oklab(47.66% -0.0219 0.0822)
OKLCH	oklch(47.66% 0.085 104.9)
XYZ	xyz(9.5824, 10.9878, 2.8441)
Luminance	0.1099 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645F1E #1E2364

analogous

#643C1E #645F1E #46641E

triadic

#645F1E #1E645F #5F1E64

tetradic

#645F1E #1E643C #1E2364 #641E46

square

#645F1E #1E643C #1E2364 #641E46

split-complementary

#645F1E #1E4664 #3C1E64

monochromatic

#181607 #353210 #645F1E #938C2C #C2B83A

Accessibility & contrast

On white

6.57

#645F1E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#645F1E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645F1E

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645F1E	#FFFFFF	#000000	##FFFFFF
##645F1E	1.00	6.57	3.20	6.57
#FFFFFF	6.57	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#685C15

Deuteranopia (green-blind)

#695F22

Tritanopia (blue-blind)

#6C5852

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #645f1e;
/* rgb */ color: rgb(100, 95, 30);
/* oklch */ color: oklch(47.7% 0.085 104.9);

Tailwind

colors: {
  custom: {
    50: '#938c5e',
    500: '#645f1e',
    950: '#000000',
  },
}

SCSS

$custom: #645f1e;
$custom-light: #938c5e;
$custom-dark: #000000;

JSON

{
  "hex": "#645f1e",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 30
  },
  "hsl": {
    "h": 55.714,
    "s": 53.846,
    "l": 25.49
  },
  "oklch": {
    "l": 0.47664,
    "c": 0.08505,
    "h": 104.9
  },
  "luminance": 0.10987
}

Semantic roles & 50–950 ramp

primary

#645F1E

secondary

#454B99

accent

#55DD4B

background

#F9F8F5

surface

#F2F0E9

border

#CCCBC5

text

#0D0C04

muted

#7E7D79

Preview Lab

Preview with #645F1E

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

Preview Lab → · Contrast checker → · Palette generator →