#210405#210405

#210405 is a very dark, muted red. Relative luminance 0.004; OKLCH L 16.8% C 0.052 H 22.0°. Best body text is #FFFFFF at 19.37:1 contrast (WCAG AA passes).

Color values

HEX	#210405
RGB	rgb(33, 4, 5)
HSL	hsl(358, 78%, 7%)
HSV	hsv(358, 88%, 13%)
CMYK	cmyk(0%, 87.9%, 84.8%, 87.1%)
CIE-LAB	lab(3.80, 12.20, 3.87)
CIE-LCH	lch(3.80, 12.80, 17.60°)
OKLab	oklab(16.79% 0.0484 0.0196)
OKLCH	oklch(16.79% 0.052 22)
XYZ	xyz(0.6981, 0.4212, 0.1881)
Luminance	0.0042 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#210405 #042120

analogous

#210414 #210405 #211204

triadic

#210405 #052104 #040521

tetradic

#210405 #142104 #042120 #120421

square

#210405 #142104 #042120 #120421

split-complementary

#210405 #042112 #041421

monochromatic

#1B0304 #1B0304 #210405 #580B0D #8E1116

Accessibility & contrast

On white

19.37

#210405 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#210405 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #210405

19.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##210405	#FFFFFF	#000000	##FFFFFF
##210405	1.00	19.37	1.08	19.37
#FFFFFF	19.37	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B0905

Deuteranopia (green-blind)

#131004

Tritanopia (blue-blind)

#250105

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #210405;
/* rgb */ color: rgb(33, 4, 5);
/* oklch */ color: oklch(16.8% 0.052 22.0);

Tailwind

colors: {
  custom: {
    50: '#5c4849',
    500: '#210405',
    950: '#000000',
  },
}

SCSS

$custom: #210405;
$custom-light: #5c4849;
$custom-dark: #000000;

JSON

{
  "hex": "#210405",
  "rgb": {
    "r": 33,
    "g": 4,
    "b": 5
  },
  "hsl": {
    "h": 357.931,
    "s": 78.378,
    "l": 7.255
  },
  "oklch": {
    "l": 0.16786,
    "c": 0.05223,
    "h": 22
  },
  "luminance": 0.00421
}

Semantic roles & 50–950 ramp

primary

#210405

secondary

#1D6461

accent

#F5EE33

background

#F5F4F4

surface

#E9E6E6

border

#C5C2C2

text

#040000

muted

#797777

Preview Lab

Preview with #210405

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

Preview Lab → · Contrast checker → · Palette generator →