#423D0B#423D0B

#423D0B is a dark, moderate yellow. Relative luminance 0.045; OKLCH L 35.5% C 0.067 H 103.5°. Best body text is #FFFFFF at 11.03:1 contrast (WCAG AA passes).

Color values

HEX	#423D0B
RGB	rgb(66, 61, 11)
HSL	hsl(55, 71%, 15%)
HSV	hsv(55, 83%, 26%)
CMYK	cmyk(0%, 7.6%, 83.3%, 74.1%)
CIE-LAB	lab(25.32, -4.54, 29.65)
CIE-LCH	lch(25.32, 29.99, 98.70°)
OKLab	oklab(35.47% -0.0156 0.0653)
OKLCH	oklch(35.47% 0.067 103.5)
XYZ	xyz(3.9761, 4.5201, 0.9796)
Luminance	0.0452 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423D0B #0B1042

analogous

#42210B #423D0B #2C420B

triadic

#423D0B #0B423D #3D0B42

tetradic

#423D0B #0B4221 #0B1042 #420B2C

square

#423D0B #0B4221 #0B1042 #420B2C

split-complementary

#423D0B #0B2C42 #210B42

monochromatic

#1A1804 #1A1804 #423D0B #766D14 #AB9E1C

Accessibility & contrast

On white

11.03

#423D0B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#423D0B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423D0B

11.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423D0B	#FFFFFF	#000000	##FFFFFF
##423D0B	1.00	11.03	1.90	11.03
#FFFFFF	11.03	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#433B04

Deuteranopia (green-blind)

#453D0F

Tritanopia (blue-blind)

#483833

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #423d0b;
/* rgb */ color: rgb(66, 61, 11);
/* oklch */ color: oklch(35.5% 0.067 103.5);

Tailwind

colors: {
  custom: {
    50: '#79724e',
    500: '#423d0b',
    950: '#000000',
  },
}

SCSS

$custom: #423d0b;
$custom-light: #79724e;
$custom-dark: #000000;

JSON

{
  "hex": "#423d0b",
  "rgb": {
    "r": 66,
    "g": 61,
    "b": 11
  },
  "hsl": {
    "h": 54.545,
    "s": 71.429,
    "l": 15.098
  },
  "oklch": {
    "l": 0.35467,
    "c": 0.06715,
    "h": 103.5
  },
  "luminance": 0.0452
}

Semantic roles & 50–950 ramp

primary

#423D0B

secondary

#2A327F

accent

#4AEE3A

background

#F7F6F4

surface

#EEECE7

border

#C9C7C3

text

#090702

muted

#7B7A78

Preview Lab

Preview with #423D0B

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

Preview Lab → · Contrast checker → · Palette generator →