#21104B#21104B

#21104B is a very dark, moderate violet. Relative luminance 0.012; OKLCH L 24.0% C 0.102 H 289.7°. Best body text is #FFFFFF at 16.93:1 contrast (WCAG AA passes).

Color values

HEX	#21104B
RGB	rgb(33, 16, 75)
HSL	hsl(257, 65%, 18%)
HSV	hsv(257, 79%, 29%)
CMYK	cmyk(56%, 78.7%, 0%, 70.6%)
CIE-LAB	lab(10.57, 25.37, -33.45)
CIE-LCH	lch(10.57, 41.99, 307.18°)
OKLab	oklab(24.03% 0.0343 -0.096)
OKLCH	oklch(24.03% 0.102 289.7)
XYZ	xyz(2.0821, 1.2018, 6.7775)
Luminance	0.0120 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.69

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21104B #3A4B10

analogous

#101C4B #21104B #3E104B

triadic

#21104B #4B2110 #104B21

tetradic

#21104B #4B101C #3A4B10 #104B3E

square

#21104B #4B101C #3A4B10 #104B3E

split-complementary

#21104B #4B3E10 #1C4B10

monochromatic

#0B0519 #0B0519 #21104B #371B7D #4D26B0

Accessibility & contrast

On white

16.93

#21104B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#21104B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21104B

16.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21104B	#FFFFFF	#000000	##FFFFFF
##21104B	1.00	16.93	1.24	16.93
#FFFFFF	16.93	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001E4D

Deuteranopia (green-blind)

#001B4A

Tritanopia (blue-blind)

#121F2C

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #21104b;
/* rgb */ color: rgb(33, 16, 75);
/* oklch */ color: oklch(24.0% 0.102 289.7);

Tailwind

colors: {
  custom: {
    50: '#62507e',
    500: '#21104b',
    950: '#000000',
  },
}

SCSS

$custom: #21104b;
$custom-light: #62507e;
$custom-dark: #000000;

JSON

{
  "hex": "#21104b",
  "rgb": {
    "r": 33,
    "g": 16,
    "b": 75
  },
  "hsl": {
    "h": 257.288,
    "s": 64.835,
    "l": 17.843
  },
  "oklch": {
    "l": 0.24025,
    "c": 0.10198,
    "h": 289.7
  },
  "luminance": 0.01202
}

Semantic roles & 50–950 ramp

primary

#21104B

secondary

#6D8532

accent

#E840B7

background

#F6F4F7

surface

#EBE7EE

border

#C6C3C9

text

#05020A

muted

#7A787C

Preview Lab

Preview with #21104B

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

Preview Lab → · Contrast checker → · Palette generator →