#64571B#64571B

#64571B is a mid, moderate yellow. Relative luminance 0.096; OKLCH L 45.7% C 0.080 H 96.8°. Best body text is #FFFFFF at 7.19:1 contrast (WCAG AA passes).

Color values

HEX	#64571B
RGB	rgb(100, 87, 27)
HSL	hsl(49, 57%, 25%)
HSV	hsv(49, 73%, 39%)
CMYK	cmyk(0%, 13%, 73%, 60.8%)
CIE-LAB	lab(37.12, -2.26, 35.33)
CIE-LCH	lch(37.12, 35.40, 93.66°)
OKLab	oklab(45.72% -0.0094 0.0793)
OKLCH	oklch(45.72% 0.08 96.8)
XYZ	xyz(8.8620, 9.6053, 2.4239)
Luminance	0.0960 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64571B #1B2864

analogous

#64331B #64571B #4D641B

triadic

#64571B #1B6457 #571B64

tetradic

#64571B #1B6433 #1B2864 #641B4D

square

#64571B #1B6433 #1B2864 #641B4D

split-complementary

#64571B #1B4D64 #331B64

monochromatic

#181507 #342D0E #64571B #948128 #C4AB35

Accessibility & contrast

On white

7.19

#64571B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#64571B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #64571B

7.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64571B	#FFFFFF	#000000	##FFFFFF
##64571B	1.00	7.19	2.92	7.19
#FFFFFF	7.19	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605513

Deuteranopia (green-blind)

#64591E

Tritanopia (blue-blind)

#6C504B

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #64571b;
/* rgb */ color: rgb(100, 87, 27);
/* oklch */ color: oklch(45.7% 0.080 96.8);

Tailwind

colors: {
  custom: {
    50: '#93865b',
    500: '#64571b',
    950: '#000000',
  },
}

SCSS

$custom: #64571b;
$custom-light: #93865b;
$custom-dark: #000000;

JSON

{
  "hex": "#64571b",
  "rgb": {
    "r": 100,
    "g": 87,
    "b": 27
  },
  "hsl": {
    "h": 49.315,
    "s": 57.48,
    "l": 24.902
  },
  "oklch": {
    "l": 0.45722,
    "c": 0.07982,
    "h": 96.8
  },
  "luminance": 0.09605
}

Semantic roles & 50–950 ramp

primary

#64571B

secondary

#415199

accent

#62E147

background

#F9F8F5

surface

#F2EFE9

border

#CCCAC5

text

#0D0B04

muted

#7E7C79

Preview Lab

Preview with #64571B

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

Preview Lab → · Contrast checker → · Palette generator →