#645A1A#645A1A

#645A1A is a mid, moderate yellow. Relative luminance 0.101; OKLCH L 46.4% C 0.083 H 100.2°. Best body text is #FFFFFF at 6.96:1 contrast (WCAG AA passes).

Color values

HEX	#645A1A
RGB	rgb(100, 90, 26)
HSL	hsl(52, 59%, 25%)
HSV	hsv(52, 74%, 39%)
CMYK	cmyk(0%, 10%, 74%, 60.8%)
CIE-LAB	lab(38.02, -4.10, 36.69)
CIE-LCH	lch(38.02, 36.92, 96.37°)
OKLab	oklab(46.43% -0.0148 0.0819)
OKLCH	oklch(46.43% 0.083 100.2)
XYZ	xyz(9.0986, 10.0966, 2.4467)
Luminance	0.1010 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645A1A #1A2464

analogous

#64351A #645A1A #49641A

triadic

#645A1A #1A645A #5A1A64

tetradic

#645A1A #1A6435 #1A2464 #641A49

square

#645A1A #1A6435 #1A2464 #641A49

split-complementary

#645A1A #1A4964 #351A64

monochromatic

#181606 #332E0D #645A1A #958627 #C5B133

Accessibility & contrast

On white

6.96

#645A1A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#645A1A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645A1A

6.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645A1A	#FFFFFF	#000000	##FFFFFF
##645A1A	1.00	6.96	3.02	6.96
#FFFFFF	6.96	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635711

Deuteranopia (green-blind)

#665B1E

Tritanopia (blue-blind)

#6C534D

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #645a1a;
/* rgb */ color: rgb(100, 90, 26);
/* oklch */ color: oklch(46.4% 0.083 100.2);

Tailwind

colors: {
  custom: {
    50: '#93885b',
    500: '#645a1a',
    950: '#000000',
  },
}

SCSS

$custom: #645a1a;
$custom-light: #93885b;
$custom-dark: #000000;

JSON

{
  "hex": "#645a1a",
  "rgb": {
    "r": 100,
    "g": 90,
    "b": 26
  },
  "hsl": {
    "h": 51.892,
    "s": 58.73,
    "l": 24.706
  },
  "oklch": {
    "l": 0.46426,
    "c": 0.08327,
    "h": 100.2
  },
  "luminance": 0.10096
}

Semantic roles & 50–950 ramp

primary

#645A1A

secondary

#404C9A

accent

#5BE246

background

#F9F8F5

surface

#F2EFE9

border

#CCCAC5

text

#0D0B04

muted

#7E7C79

Preview Lab

Preview with #645A1A

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

Preview Lab → · Contrast checker → · Palette generator →