#210107#210107

#210107 is a very dark, moderate red. Relative luminance 0.004; OKLCH L 16.1% C 0.060 H 11.4°. Best body text is #FFFFFF at 19.59:1 contrast (WCAG AA passes).

Color values

HEX	#210107
RGB	rgb(33, 1, 7)
HSL	hsl(349, 94%, 7%)
HSV	hsv(349, 97%, 13%)
CMYK	cmyk(0%, 97%, 78.8%, 87.1%)
CIE-LAB	lab(3.26, 13.68, 2.25)
CIE-LCH	lch(3.26, 13.86, 9.36°)
OKLab	oklab(16.11% 0.059 0.0119)
OKLCH	oklch(16.11% 0.06 11.4)
XYZ	xyz(0.6765, 0.3605, 0.2349)
Luminance	0.0036 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#210107 #01211B

analogous

#210117 #210107 #210B01

triadic

#210107 #072101 #010721

tetradic

#210107 #172101 #01211B #0B0121

square

#210107 #172101 #01211B #0B0121

split-complementary

#210107 #01210B #011721

monochromatic

#1E0106 #1E0106 #210107 #5C0314 #980520

Accessibility & contrast

On white

19.59

#210107 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.07

#210107 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #210107

19.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##210107	#FFFFFF	#000000	##FFFFFF
##210107	1.00	19.59	1.07	19.59
#FFFFFF	19.59	1.00	21.00	1.00
#000000	1.07	21.00	1.00	21.00
##FFFFFF	19.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#070707

Deuteranopia (green-blind)

#100E06

Tritanopia (blue-blind)

#250003

Achromatopsia (no color)

#0C0C0C

Design tokens & code

CSS

--color: #210107;
/* rgb */ color: rgb(33, 1, 7);
/* oklch */ color: oklch(16.1% 0.060 11.4);

Tailwind

colors: {
  custom: {
    50: '#5c474a',
    500: '#210107',
    950: '#000000',
  },
}

SCSS

$custom: #210107;
$custom-light: #5c474a;
$custom-dark: #000000;

JSON

{
  "hex": "#210107",
  "rgb": {
    "r": 33,
    "g": 1,
    "b": 7
  },
  "hsl": {
    "h": 348.75,
    "s": 94.118,
    "l": 6.667
  },
  "oklch": {
    "l": 0.16106,
    "c": 0.06019,
    "h": 11.4
  },
  "luminance": 0.0036
}

Semantic roles & 50–950 ramp

primary

#210107

secondary

#156859

accent

#FFD729

background

#F5F3F4

surface

#E9E5E7

border

#C5C1C3

text

#040001

muted

#797777

Preview Lab

Preview with #210107

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

Preview Lab → · Contrast checker → · Palette generator →