#7B1721#7B1721

#7B1721 is a dark, vivid red. Relative luminance 0.049; OKLCH L 38.3% C 0.134 H 21.5°. Best body text is #FFFFFF at 10.57:1 contrast (WCAG AA passes).

Color values

HEX	#7B1721
RGB	rgb(123, 23, 33)
HSL	hsl(354, 68%, 29%)
HSV	hsv(354, 81%, 48%)
CMYK	cmyk(0%, 81.3%, 73.2%, 51.8%)
CIE-LAB	lab(26.55, 42.37, 21.21)
CIE-LCH	lch(26.55, 47.38, 26.59°)
OKLab	oklab(38.33% 0.1244 0.0489)
OKLCH	oklch(38.33% 0.134 21.5)
XYZ	xyz(8.7503, 4.9349, 1.9303)
Luminance	0.0493 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#7B1721 #177B71

analogous

#7B1753 #7B1721 #7B3F17

triadic

#7B1721 #217B17 #17217B

tetradic

#7B1721 #537B17 #177B71 #3F177B

square

#7B1721 #537B17 #177B71 #3F177B

split-complementary

#7B1721 #177B3F #17537B

monochromatic

#1A0507 #470D13 #7B1721 #AF212F #D93344

Accessibility & contrast

On white

10.57

#7B1721 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#7B1721 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #7B1721

10.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##7B1721	#FFFFFF	#000000	##FFFFFF
##7B1721	1.00	10.57	1.99	10.57
#FFFFFF	10.57	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#353120

Deuteranopia (green-blind)

#4E461E

Tritanopia (blue-blind)

#88001C

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #7b1721;
/* rgb */ color: rgb(123, 23, 33);
/* oklch */ color: oklch(38.3% 0.134 21.5);

Tailwind

colors: {
  custom: {
    50: '#a85f5c',
    500: '#7b1721',
    950: '#000000',
  },
}

SCSS

$custom: #7b1721;
$custom-light: #a85f5c;
$custom-dark: #000000;

JSON

{
  "hex": "#7b1721",
  "rgb": {
    "r": 123,
    "g": 23,
    "b": 33
  },
  "hsl": {
    "h": 354,
    "s": 68.493,
    "l": 28.627
  },
  "oklch": {
    "l": 0.38327,
    "c": 0.1337,
    "h": 21.5
  },
  "luminance": 0.04934
}

Semantic roles & 50–950 ramp

primary

#7B1721

secondary

#3EB0A5

accent

#EBDA3C

background

#FBF5F5

surface

#F6EAE9

border

#D0C6C5

text

#110504

muted

#807979

Preview Lab

Preview with #7B1721

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

Preview Lab → · Contrast checker → · Palette generator →