#4B3F0B#4B3F0B

#4B3F0B is a dark, moderate yellow. Relative luminance 0.051; OKLCH L 37.0% C 0.069 H 95.3°. Best body text is #FFFFFF at 10.42:1 contrast (WCAG AA passes).

Color values

HEX	#4B3F0B
RGB	rgb(75, 63, 11)
HSL	hsl(49, 74%, 17%)
HSV	hsv(49, 85%, 29%)
CMYK	cmyk(0%, 16%, 85.3%, 70.6%)
CIE-LAB	lab(26.95, -1.08, 31.53)
CIE-LCH	lch(26.95, 31.54, 91.97°)
OKLab	oklab(36.99% -0.0064 0.0688)
OKLCH	oklch(36.99% 0.069 95.3)
XYZ	xyz(4.7398, 5.0753, 1.0465)
Luminance	0.0508 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B3F0B #0B174B

analogous

#4B1F0B #4B3F0B #374B0B

triadic

#4B3F0B #0B4B3F #3F0B4B

tetradic

#4B3F0B #0B4B1F #0B174B #4B0B37

square

#4B3F0B #0B4B1F #0B174B #4B0B37

split-complementary

#4B3F0B #0B374B #1F0B4B

monochromatic

#1B1604 #1B1604 #4B3F0B #806C13 #B6991B

Accessibility & contrast

On white

10.42

#4B3F0B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#4B3F0B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B3F0B

10.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B3F0B	#FFFFFF	#000000	##FFFFFF
##4B3F0B	1.00	10.42	2.02	10.42
#FFFFFF	10.42	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#473E03

Deuteranopia (green-blind)

#4A410E

Tritanopia (blue-blind)

#523935

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #4b3f0b;
/* rgb */ color: rgb(75, 63, 11);
/* oklch */ color: oklch(37.0% 0.069 95.3);

Tailwind

colors: {
  custom: {
    50: '#80734f',
    500: '#4b3f0b',
    950: '#000000',
  },
}

SCSS

$custom: #4b3f0b;
$custom-light: #80734f;
$custom-dark: #000000;

JSON

{
  "hex": "#4b3f0b",
  "rgb": {
    "r": 75,
    "g": 63,
    "b": 11
  },
  "hsl": {
    "h": 48.75,
    "s": 74.419,
    "l": 16.863
  },
  "oklch": {
    "l": 0.36991,
    "c": 0.06914,
    "h": 95.3
  },
  "luminance": 0.05075
}

Semantic roles & 50–950 ramp

primary

#4B3F0B

secondary

#2B3C87

accent

#5AF137

background

#F8F6F4

surface

#EFECE7

border

#CAC7C3

text

#0B0802

muted

#7C7B78

Preview Lab

Preview with #4B3F0B

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

Preview Lab → · Contrast checker → · Palette generator →