#3F3F0B#3F3F0B

#3F3F0B is a dark, moderate yellow. Relative luminance 0.046; OKLCH L 35.7% C 0.070 H 109.5°. Best body text is #FFFFFF at 10.90:1 contrast (WCAG AA passes).

Color values

HEX	#3F3F0B
RGB	rgb(63, 63, 11)
HSL	hsl(60, 70%, 15%)
HSV	hsv(60, 83%, 25%)
CMYK	cmyk(0%, 0%, 82.5%, 75.3%)
CIE-LAB	lab(25.67, -7.34, 29.87)
CIE-LCH	lch(25.67, 30.76, 103.81°)
OKLab	oklab(35.67% -0.0233 0.0659)
OKLCH	oklch(35.67% 0.07 109.5)
XYZ	xyz(3.8880, 4.6361, 1.0066)
Luminance	0.0464 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F3F0B #0B0B3F

analogous

#3F250B #3F3F0B #253F0B

triadic

#3F3F0B #0B3F3F #3F0B3F

tetradic

#3F3F0B #0B3F25 #0B0B3F #3F0B25

square

#3F3F0B #0B3F25 #0B0B3F #3F0B25

split-complementary

#3F3F0B #0B253F #250B3F

monochromatic

#1A1A05 #1A1A05 #3F3F0B #737314 #A7A71D

Accessibility & contrast

On white

10.90

#3F3F0B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#3F3F0B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3F0B

10.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3F0B	#FFFFFF	#000000	##FFFFFF
##3F3F0B	1.00	10.90	1.93	10.90
#FFFFFF	10.90	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#453C03

Deuteranopia (green-blind)

#453E0F

Tritanopia (blue-blind)

#443A35

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #3f3f0b;
/* rgb */ color: rgb(63, 63, 11);
/* oklch */ color: oklch(35.7% 0.070 109.5);

Tailwind

colors: {
  custom: {
    50: '#76734e',
    500: '#3f3f0b',
    950: '#000000',
  },
}

SCSS

$custom: #3f3f0b;
$custom-light: #76734e;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3f0b",
  "rgb": {
    "r": 63,
    "g": 63,
    "b": 11
  },
  "hsl": {
    "h": 60,
    "s": 70.27,
    "l": 14.51
  },
  "oklch": {
    "l": 0.35672,
    "c": 0.06991,
    "h": 109.5
  },
  "luminance": 0.04636
}

Semantic roles & 50–950 ramp

primary

#3F3F0B

secondary

#2A2A7C

accent

#3BED3B

background

#F7F6F4

surface

#EDECE7

border

#C8C7C3

text

#090802

muted

#7B7B78

Preview Lab

Preview with #3F3F0B

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

Preview Lab → · Contrast checker → · Palette generator →