#42450B#42450B

#42450B is a dark, moderate yellow. Relative luminance 0.054; OKLCH L 37.6% C 0.076 H 112.6°. Best body text is #FFFFFF at 10.06:1 contrast (WCAG AA passes).

Color values

HEX	#42450B
RGB	rgb(66, 69, 11)
HSL	hsl(63, 73%, 16%)
HSV	hsv(63, 84%, 27%)
CMYK	cmyk(4.3%, 0%, 84.1%, 72.9%)
CIE-LAB	lab(27.95, -9.43, 32.12)
CIE-LCH	lch(27.95, 33.47, 106.36°)
OKLab	oklab(37.57% -0.0293 0.0705)
OKLCH	oklch(37.57% 0.076 112.6)
XYZ	xyz(4.4354, 5.4388, 1.1327)
Luminance	0.0544 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42450B #0E0B45

analogous

#452B0B #42450B #25450B

triadic

#42450B #0B4245 #450B42

tetradic

#42450B #0B452B #0E0B45 #450B25

square

#42450B #0B452B #0E0B45 #450B25

split-complementary

#42450B #0B2545 #2B0B45

monochromatic

#191A04 #191A04 #42450B #747A13 #A7AF1C

Accessibility & contrast

On white

10.06

#42450B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#42450B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42450B

10.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42450B	#FFFFFF	#000000	##FFFFFF
##42450B	1.00	10.06	2.09	10.06
#FFFFFF	10.06	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B4101

Deuteranopia (green-blind)

#4B4310

Tritanopia (blue-blind)

#47403A

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #42450b;
/* rgb */ color: rgb(66, 69, 11);
/* oklch */ color: oklch(37.6% 0.076 112.6);

Tailwind

colors: {
  custom: {
    50: '#79784f',
    500: '#42450b',
    950: '#000000',
  },
}

SCSS

$custom: #42450b;
$custom-light: #79784f;
$custom-dark: #000000;

JSON

{
  "hex": "#42450b",
  "rgb": {
    "r": 66,
    "g": 69,
    "b": 11
  },
  "hsl": {
    "h": 63.103,
    "s": 72.5,
    "l": 15.686
  },
  "oklch": {
    "l": 0.37565,
    "c": 0.07638,
    "h": 112.6
  },
  "luminance": 0.05439
}

Semantic roles & 50–950 ramp

primary

#42450B

secondary

#2F2A81

accent

#39EF42

background

#F7F7F4

surface

#EEEDE7

border

#C9C8C3

text

#090802

muted

#7B7B78

Preview Lab

Preview with #42450B

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

Preview Lab → · Contrast checker → · Palette generator →