#3F3F04#3F3F04

#3F3F04 is a dark, moderate yellow. Relative luminance 0.046; OKLCH L 35.6% C 0.075 H 109.7°. Best body text is #FFFFFF at 10.91:1 contrast (WCAG AA passes).

Color values

HEX	#3F3F04
RGB	rgb(63, 63, 4)
HSL	hsl(60, 88%, 13%)
HSV	hsv(60, 94%, 25%)
CMYK	cmyk(0%, 0%, 93.7%, 75.3%)
CIE-LAB	lab(25.63, -7.71, 32.68)
CIE-LCH	lch(25.63, 33.58, 103.28°)
OKLab	oklab(35.62% -0.0251 0.0704)
OKLCH	oklch(35.62% 0.075 109.7)
XYZ	xyz(3.8495, 4.6207, 0.8039)
Luminance	0.0462 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F3F04 #04043F

analogous

#3F2104 #3F3F04 #213F04

triadic

#3F3F04 #043F3F #3F043F

tetradic

#3F3F04 #043F21 #04043F #3F0421

square

#3F3F04 #043F21 #04043F #3F0421

split-complementary

#3F3F04 #04213F #21043F

monochromatic

#1D1D02 #1D1D02 #3F3F04 #797908 #B2B20B

Accessibility & contrast

On white

10.91

#3F3F04 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#3F3F04 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3F04

10.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3F04	#FFFFFF	#000000	##FFFFFF
##3F3F04	1.00	10.91	1.92	10.91
#FFFFFF	10.91	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#453C00

Deuteranopia (green-blind)

#463D09

Tritanopia (blue-blind)

#443A35

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #3f3f04;
/* rgb */ color: rgb(63, 63, 4);
/* oklch */ color: oklch(35.6% 0.075 109.7);

Tailwind

colors: {
  custom: {
    50: '#77734b',
    500: '#3f3f04',
    950: '#000000',
  },
}

SCSS

$custom: #3f3f04;
$custom-light: #77734b;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3f04",
  "rgb": {
    "r": 63,
    "g": 63,
    "b": 4
  },
  "hsl": {
    "h": 60,
    "s": 88.06,
    "l": 13.137
  },
  "oklch": {
    "l": 0.3562,
    "c": 0.07473,
    "h": 109.7
  },
  "luminance": 0.04621
}

Semantic roles & 50–950 ramp

primary

#3F3F04

secondary

#1E1E80

accent

#2AFE2A

background

#F7F6F4

surface

#EDECE7

border

#C8C7C3

text

#090801

muted

#7B7B77

Preview Lab

Preview with #3F3F04

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

Preview Lab → · Contrast checker → · Palette generator →