#781B2B#781B2B

#781B2B is a dark, vivid red. Relative luminance 0.050; OKLCH L 38.3% C 0.127 H 16.2°. Best body text is #FFFFFF at 10.55:1 contrast (WCAG AA passes).

Color values

HEX	#781B2B
RGB	rgb(120, 27, 43)
HSL	hsl(350, 63%, 29%)
HSV	hsv(350, 78%, 47%)
CMYK	cmyk(0%, 77.5%, 64.2%, 52.9%)
CIE-LAB	lab(26.60, 40.63, 14.49)
CIE-LCH	lch(26.60, 43.14, 19.63°)
OKLab	oklab(38.31% 0.1215 0.0352)
OKLCH	oklch(38.31% 0.127 16.2)
XYZ	xyz(8.5746, 4.9526, 2.7895)
Luminance	0.0495 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#781B2B #1B7868

analogous

#781B5A #781B2B #783A1B

triadic

#781B2B #2B781B #1B2B78

tetradic

#781B2B #5A781B #1B7868 #3A1B78

square

#781B2B #5A781B #1B7868 #3A1B78

split-complementary

#781B2B #1B783A #1B5A78

monochromatic

#190609 #461019 #781B2B #AA263D #D33B55

Accessibility & contrast

On white

10.55

#781B2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#781B2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #781B2B

10.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##781B2B	#FFFFFF	#000000	##FFFFFF
##781B2B	1.00	10.55	1.99	10.55
#FFFFFF	10.55	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#35332B

Deuteranopia (green-blind)

#4C4628

Tritanopia (blue-blind)

#840022

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #781b2b;
/* rgb */ color: rgb(120, 27, 43);
/* oklch */ color: oklch(38.3% 0.127 16.2);

Tailwind

colors: {
  custom: {
    50: '#a56064',
    500: '#781b2b',
    950: '#000000',
  },
}

SCSS

$custom: #781b2b;
$custom-light: #a56064;
$custom-dark: #000000;

JSON

{
  "hex": "#781b2b",
  "rgb": {
    "r": 120,
    "g": 27,
    "b": 43
  },
  "hsl": {
    "h": 349.677,
    "s": 63.265,
    "l": 28.824
  },
  "oklch": {
    "l": 0.38313,
    "c": 0.12654,
    "h": 16.2
  },
  "luminance": 0.04951
}

Semantic roles & 50–950 ramp

primary

#781B2B

secondary

#43AC9A

accent

#E6CA41

background

#FAF5F5

surface

#F4EAEA

border

#CEC6C6

text

#100505

muted

#7F7979

Preview Lab

Preview with #781B2B

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

Preview Lab → · Contrast checker → · Palette generator →