#3F030F#3F030F

#3F030F is a very dark, moderate red. Relative luminance 0.012; OKLCH L 23.7% C 0.089 H 16.5°. Best body text is #FFFFFF at 17.06:1 contrast (WCAG AA passes).

Color values

HEX	#3F030F
RGB	rgb(63, 3, 15)
HSL	hsl(348, 91%, 13%)
HSV	hsv(348, 95%, 25%)
CMYK	cmyk(0%, 95.2%, 76.2%, 75.3%)
CIE-LAB	lab(10.23, 28.74, 9.62)
CIE-LCH	lch(10.23, 30.31, 18.51°)
OKLab	oklab(23.75% 0.0857 0.0253)
OKLCH	oklch(23.75% 0.089 16.5)
XYZ	xyz(2.1689, 1.1567, 0.5609)
Luminance	0.0116 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F030F #033F33

analogous

#3F032D #3F030F #3F1503

triadic

#3F030F #0F3F03 #030F3F

tetradic

#3F030F #2D3F03 #033F33 #15033F

square

#3F030F #2D3F03 #033F33 #15033F

split-complementary

#3F030F #033F15 #032D3F

monochromatic

#1D0107 #1D0107 #3F030F #79061D #B4092B

Accessibility & contrast

On white

17.06

#3F030F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#3F030F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F030F

17.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F030F	#FFFFFF	#000000	##FFFFFF
##3F030F	1.00	17.06	1.23	17.06
#FFFFFF	17.06	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#15140F

Deuteranopia (green-blind)

#24200D

Tritanopia (blue-blind)

#460008

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #3f030f;
/* rgb */ color: rgb(63, 3, 15);
/* oklch */ color: oklch(23.7% 0.089 16.5);

Tailwind

colors: {
  custom: {
    50: '#794b4d',
    500: '#3f030f',
    950: '#000000',
  },
}

SCSS

$custom: #3f030f;
$custom-light: #794b4d;
$custom-dark: #000000;

JSON

{
  "hex": "#3f030f",
  "rgb": {
    "r": 63,
    "g": 3,
    "b": 15
  },
  "hsl": {
    "h": 348,
    "s": 90.909,
    "l": 12.941
  },
  "oklch": {
    "l": 0.23746,
    "c": 0.08933,
    "h": 16.5
  },
  "luminance": 0.01156
}

Semantic roles & 50–950 ramp

primary

#3F030F

secondary

#1D816D

accent

#FFD429

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0101

muted

#7C7777

Preview Lab

Preview with #3F030F

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

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