#21043B#21043B

#21043B is a very dark, moderate violet. Relative luminance 0.007; OKLCH L 20.6% C 0.098 H 302.5°. Best body text is #FFFFFF at 18.34:1 contrast (WCAG AA passes).

Color values

HEX	#21043B
RGB	rgb(33, 4, 59)
HSL	hsl(272, 87%, 12%)
HSV	hsv(272, 93%, 23%)
CMYK	cmyk(44.1%, 93.2%, 0%, 76.9%)
CIE-LAB	lab(6.56, 27.06, -28.68)
CIE-LCH	lch(6.56, 39.43, 313.33°)
OKLab	oklab(20.63% 0.0525 -0.0824)
OKLCH	oklch(20.63% 0.098 302.5)
XYZ	xyz(1.4598, 0.7259, 4.2000)
Luminance	0.0073 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21043B #1E3B04

analogous

#05043B #21043B #3B043A

triadic

#21043B #3B2104 #043B21

tetradic

#21043B #3B0504 #1E3B04 #043A3B

square

#21043B #3B0504 #1E3B04 #043A3B

split-complementary

#21043B #3A3B04 #043B05

monochromatic

#10021D #10021D #21043B #410874 #610CAE

Accessibility & contrast

On white

18.34

#21043B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#21043B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21043B

18.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21043B	#FFFFFF	#000000	##FFFFFF
##21043B	1.00	18.34	1.15	18.34
#FFFFFF	18.34	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00143C

Deuteranopia (green-blind)

#00143A

Tritanopia (blue-blind)

#1B1320

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #21043b;
/* rgb */ color: rgb(33, 4, 59);
/* oklch */ color: oklch(20.6% 0.098 302.5);

Tailwind

colors: {
  custom: {
    50: '#604871',
    500: '#21043b',
    950: '#000000',
  },
}

SCSS

$custom: #21043b;
$custom-light: #604871;
$custom-dark: #000000;

JSON

{
  "hex": "#21043b",
  "rgb": {
    "r": 33,
    "g": 4,
    "b": 59
  },
  "hsl": {
    "h": 271.636,
    "s": 87.302,
    "l": 12.353
  },
  "oklch": {
    "l": 0.20631,
    "c": 0.09771,
    "h": 302.5
  },
  "luminance": 0.00726
}

Semantic roles & 50–950 ramp

primary

#21043B

secondary

#4B7D1E

accent

#FD2A8E

background

#F5F4F6

surface

#EAE6EC

border

#C6C2C7

text

#050008

muted

#79777B

Preview Lab

Preview with #21043B

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

Preview Lab → · Contrast checker → · Palette generator →