#30040B#30040B

#30040B is a very dark, moderate red. Relative luminance 0.007; OKLCH L 20.4% C 0.071 H 16.4°. Best body text is #FFFFFF at 18.30:1 contrast (WCAG AA passes).

Color values

HEX	#30040B
RGB	rgb(48, 4, 11)
HSL	hsl(350, 85%, 10%)
HSV	hsv(350, 92%, 19%)
CMYK	cmyk(0%, 91.7%, 77.1%, 81.2%)
CIE-LAB	lab(6.68, 22.51, 5.95)
CIE-LCH	lch(6.68, 23.28, 14.80°)
OKLab	oklab(20.38% 0.0682 0.0201)
OKLCH	oklch(20.38% 0.071 16.4)
XYZ	xyz(1.3229, 0.7396, 0.3896)
Luminance	0.0074 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#30040B #043029

analogous

#300421 #30040B #301304

triadic

#30040B #0B3004 #040B30

tetradic

#30040B #213004 #043029 #130430

square

#30040B #213004 #043029 #130430

split-complementary

#30040B #043013 #042130

monochromatic

#1C0206 #1C0206 #30040B #680918 #A10D25

Accessibility & contrast

On white

18.30

#30040B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#30040B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #30040B

18.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##30040B	#FFFFFF	#000000	##FFFFFF
##30040B	1.00	18.30	1.15	18.30
#FFFFFF	18.30	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#100F0B

Deuteranopia (green-blind)

#1B180A

Tritanopia (blue-blind)

#360007

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #30040b;
/* rgb */ color: rgb(48, 4, 11);
/* oklch */ color: oklch(20.4% 0.071 16.4);

Tailwind

colors: {
  custom: {
    50: '#6c484c',
    500: '#30040b',
    950: '#000000',
  },
}

SCSS

$custom: #30040b;
$custom-light: #6c484c;
$custom-dark: #000000;

JSON

{
  "hex": "#30040b",
  "rgb": {
    "r": 48,
    "g": 4,
    "b": 11
  },
  "hsl": {
    "h": 350.455,
    "s": 84.615,
    "l": 10.196
  },
  "oklch": {
    "l": 0.20379,
    "c": 0.07115,
    "h": 16.4
  },
  "luminance": 0.00739
}

Semantic roles & 50–950 ramp

primary

#30040B

secondary

#1D7265

accent

#FBDA2D

background

#F6F4F4

surface

#ECE6E7

border

#C7C2C3

text

#070101

muted

#7A7777

Preview Lab

Preview with #30040B

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

Preview Lab → · Contrast checker → · Palette generator →