#645F1A#645F1A

#645F1A is a mid, moderate yellow. Relative luminance 0.110; OKLCH L 47.6% C 0.088 H 105.2°. Best body text is #FFFFFF at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#645F1A
RGB	rgb(100, 95, 26)
HSL	hsl(56, 59%, 25%)
HSV	hsv(56, 74%, 39%)
CMYK	cmyk(0%, 5%, 74%, 60.8%)
CIE-LAB	lab(39.53, -7.02, 38.20)
CIE-LCH	lch(39.53, 38.84, 100.41°)
OKLab	oklab(47.63% -0.0231 0.0851)
OKLCH	oklch(47.63% 0.088 105.2)
XYZ	xyz(9.5346, 10.9687, 2.5920)
Luminance	0.1097 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645F1A #1A1F64

analogous

#643A1A #645F1A #44641A

triadic

#645F1A #1A645F #5F1A64

tetradic

#645F1A #1A643A #1A1F64 #641A44

square

#645F1A #1A643A #1A1F64 #641A44

split-complementary

#645F1A #1A4464 #3A1A64

monochromatic

#181706 #33310D #645F1A #958D27 #C5BB33

Accessibility & contrast

On white

6.58

#645F1A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#645F1A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645F1A

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645F1A	#FFFFFF	#000000	##FFFFFF
##645F1A	1.00	6.58	3.19	6.58
#FFFFFF	6.58	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#685B0F

Deuteranopia (green-blind)

#6A5E1F

Tritanopia (blue-blind)

#6C5851

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #645f1a;
/* rgb */ color: rgb(100, 95, 26);
/* oklch */ color: oklch(47.6% 0.088 105.2);

Tailwind

colors: {
  custom: {
    50: '#938c5b',
    500: '#645f1a',
    950: '#000000',
  },
}

SCSS

$custom: #645f1a;
$custom-light: #938c5b;
$custom-dark: #000000;

JSON

{
  "hex": "#645f1a",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 26
  },
  "hsl": {
    "h": 55.946,
    "s": 58.73,
    "l": 24.706
  },
  "oklch": {
    "l": 0.47628,
    "c": 0.0882,
    "h": 105.2
  },
  "luminance": 0.10968
}

Semantic roles & 50–950 ramp

primary

#645F1A

secondary

#40469A

accent

#50E246

background

#F9F8F5

surface

#F2F0E9

border

#CCCBC5

text

#0D0C04

muted

#7E7D79

Preview Lab

Preview with #645F1A

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

Preview Lab → · Contrast checker → · Palette generator →