#210308#210308

#210308 is a very dark, muted red. Relative luminance 0.004; OKLCH L 16.6% C 0.055 H 12.6°. Best body text is #FFFFFF at 19.42:1 contrast (WCAG AA passes).

Color values

HEX	#210308
RGB	rgb(33, 3, 8)
HSL	hsl(350, 83%, 7%)
HSV	hsv(350, 91%, 13%)
CMYK	cmyk(0%, 90.9%, 75.8%, 87.1%)
CIE-LAB	lab(3.67, 13.01, 2.45)
CIE-LCH	lch(3.67, 13.24, 10.65°)
OKLab	oklab(16.65% 0.0534 0.012)
OKLCH	oklch(16.65% 0.055 12.6)
XYZ	xyz(0.7037, 0.4061, 0.2710)
Luminance	0.0041 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#210308 #03211C

analogous

#210317 #210308 #210D03

triadic

#210308 #082103 #030821

tetradic

#210308 #172103 #03211C #0D0321

square

#210308 #172103 #03211C #0D0321

split-complementary

#210308 #03210D #031721

monochromatic

#1C0307 #1C0307 #210308 #590816 #910D23

Accessibility & contrast

On white

19.42

#210308 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#210308 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #210308

19.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##210308	#FFFFFF	#000000	##FFFFFF
##210308	1.00	19.42	1.08	19.42
#FFFFFF	19.42	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#090908

Deuteranopia (green-blind)

#111007

Tritanopia (blue-blind)

#250005

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #210308;
/* rgb */ color: rgb(33, 3, 8);
/* oklch */ color: oklch(16.6% 0.055 12.6);

Tailwind

colors: {
  custom: {
    50: '#5c484a',
    500: '#210308',
    950: '#000000',
  },
}

SCSS

$custom: #210308;
$custom-light: #5c484a;
$custom-dark: #000000;

JSON

{
  "hex": "#210308",
  "rgb": {
    "r": 33,
    "g": 3,
    "b": 8
  },
  "hsl": {
    "h": 350,
    "s": 83.333,
    "l": 7.059
  },
  "oklch": {
    "l": 0.16649,
    "c": 0.05467,
    "h": 12.6
  },
  "luminance": 0.00406
}

Semantic roles & 50–950 ramp

primary

#210308

secondary

#1B6559

accent

#FAD82E

background

#F5F4F4

surface

#E9E6E7

border

#C5C2C3

text

#040001

muted

#797777

Preview Lab

Preview with #210308

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

Preview Lab → · Contrast checker → · Palette generator →