#3F401B#3F401B

#3F401B is a dark, muted yellow. Relative luminance 0.048; OKLCH L 36.1% C 0.056 H 110.3°. Best body text is #FFFFFF at 10.71:1 contrast (WCAG AA passes).

Color values

HEX	#3F401B
RGB	rgb(63, 64, 27)
HSL	hsl(62, 41%, 18%)
HSV	hsv(62, 58%, 25%)
CMYK	cmyk(1.6%, 0%, 57.8%, 74.9%)
CIE-LAB	lab(26.17, -6.66, 22.24)
CIE-LCH	lch(26.17, 23.21, 106.67°)
OKLab	oklab(36.12% -0.0194 0.0524)
OKLCH	oklch(36.12% 0.056 110.3)
XYZ	xyz(4.0812, 4.8028, 1.7487)
Luminance	0.0480 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F401B #1C1B40

analogous

#402E1B #3F401B #2C401B

triadic

#3F401B #1B3F40 #401B3F

tetradic

#3F401B #1B402E #1C1B40 #401B2C

square

#3F401B #1B402E #1C1B40 #401B2C

split-complementary

#3F401B #1B2C40 #2E1B40

monochromatic

#151609 #151609 #3F401B #696B2D #94963F

Accessibility & contrast

On white

10.71

#3F401B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#3F401B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F401B

10.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F401B	#FFFFFF	#000000	##FFFFFF
##3F401B	1.00	10.71	1.96	10.71
#FFFFFF	10.71	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#453D18

Deuteranopia (green-blind)

#453E1D

Tritanopia (blue-blind)

#433C38

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #3f401b;
/* rgb */ color: rgb(63, 64, 27);
/* oklch */ color: oklch(36.1% 0.056 110.3);

Tailwind

colors: {
  custom: {
    50: '#757458',
    500: '#3f401b',
    950: '#000000',
  },
}

SCSS

$custom: #3f401b;
$custom-light: #757458;
$custom-dark: #000000;

JSON

{
  "hex": "#3f401b",
  "rgb": {
    "r": 63,
    "g": 64,
    "b": 27
  },
  "hsl": {
    "h": 61.622,
    "s": 40.659,
    "l": 17.843
  },
  "oklch": {
    "l": 0.36118,
    "c": 0.05586,
    "h": 110.3
  },
  "luminance": 0.04803
}

Semantic roles & 50–950 ramp

primary

#3F401B

secondary

#434175

accent

#57D15B

background

#F7F7F5

surface

#EDEDE9

border

#C8C8C5

text

#080803

muted

#7B7B78

Preview Lab

Preview with #3F401B

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

Preview Lab → · Contrast checker → · Palette generator →