#3F070A#3F070A

#3F070A is a very dark, moderate red. Relative luminance 0.012; OKLCH L 24.1% C 0.085 H 23.7°. Best body text is #FFFFFF at 16.85:1 contrast (WCAG AA passes).

Color values

HEX	#3F070A
RGB	rgb(63, 7, 10)
HSL	hsl(357, 80%, 14%)
HSV	hsv(357, 89%, 25%)
CMYK	cmyk(0%, 88.9%, 84.1%, 75.3%)
CIE-LAB	lab(10.78, 26.63, 12.73)
CIE-LCH	lch(10.78, 29.52, 25.55°)
OKLab	oklab(24.12% 0.0775 0.034)
OKLCH	oklch(24.12% 0.085 23.7)
XYZ	xyz(2.1809, 1.2310, 0.4099)
Luminance	0.0123 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F070A #073F3C

analogous

#3F0726 #3F070A #3F2007

triadic

#3F070A #0A3F07 #070A3F

tetradic

#3F070A #263F07 #073F3C #20073F

square

#3F070A #263F07 #073F3C #20073F

split-complementary

#3F070A #073F20 #07263F

monochromatic

#1C0304 #1C0304 #3F070A #760D13 #AD131B

Accessibility & contrast

On white

16.85

#3F070A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#3F070A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F070A

16.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F070A	#FFFFFF	#000000	##FFFFFF
##3F070A	1.00	16.85	1.25	16.85
#FFFFFF	16.85	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#18150A

Deuteranopia (green-blind)

#262108

Tritanopia (blue-blind)

#460009

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #3f070a;
/* rgb */ color: rgb(63, 7, 10);
/* oklch */ color: oklch(24.1% 0.085 23.7);

Tailwind

colors: {
  custom: {
    50: '#794d4b',
    500: '#3f070a',
    950: '#000000',
  },
}

SCSS

$custom: #3f070a;
$custom-light: #794d4b;
$custom-dark: #000000;

JSON

{
  "hex": "#3f070a",
  "rgb": {
    "r": 63,
    "g": 7,
    "b": 10
  },
  "hsl": {
    "h": 356.786,
    "s": 80,
    "l": 13.725
  },
  "oklch": {
    "l": 0.24122,
    "c": 0.08467,
    "h": 23.7
  },
  "luminance": 0.01231
}

Semantic roles & 50–950 ramp

primary

#3F070A

secondary

#247E79

accent

#F6EC31

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0101

muted

#7C7777

Preview Lab

Preview with #3F070A

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

Preview Lab → · Contrast checker → · Palette generator →