#21289A#21289A

#21289A is a dark, vivid blue. Relative luminance 0.042; OKLCH L 36.3% C 0.180 H 270.7°. Best body text is #FFFFFF at 11.45:1 contrast (WCAG AA passes).

Color values

HEX	#21289A
RGB	rgb(33, 40, 154)
HSL	hsl(237, 65%, 37%)
HSV	hsv(237, 79%, 60%)
CMYK	cmyk(78.6%, 74%, 0%, 39.6%)
CIE-LAB	lab(24.24, 38.29, -62.19)
CIE-LCH	lch(24.24, 73.03, 301.62°)
OKLab	oklab(36.29% 0.0021 -0.1801)
OKLCH	oklch(36.29% 0.18 270.7)
XYZ	xyz(7.2167, 4.1732, 30.9907)
Luminance	0.0417 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21289A #9A9321

analogous

#21659A #21289A #57219A

triadic

#21289A #9A2128 #289A21

tetradic

#21289A #9A2165 #9A9321 #219A57

square

#21289A #9A2165 #9A9321 #219A57

split-complementary

#21289A #9A5721 #659A21

monochromatic

#0B0E35 #161B68 #21289A #2C35CC #5A61DC

Accessibility & contrast

On white

11.45

#21289A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#21289A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21289A

11.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21289A	#FFFFFF	#000000	##FFFFFF
##21289A	1.00	11.45	1.83	11.45
#FFFFFF	11.45	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00409D

Deuteranopia (green-blind)

#003498

Tritanopia (blue-blind)

#00495E

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #21289a;
/* rgb */ color: rgb(33, 40, 154);
/* oklch */ color: oklch(36.3% 0.180 270.7);

Tailwind

colors: {
  custom: {
    50: '#7263b9',
    500: '#21289a',
    950: '#000000',
  },
}

SCSS

$custom: #21289a;
$custom-light: #7263b9;
$custom-dark: #000000;

JSON

{
  "hex": "#21289a",
  "rgb": {
    "r": 33,
    "g": 40,
    "b": 154
  },
  "hsl": {
    "h": 236.529,
    "s": 64.706,
    "l": 36.667
  },
  "oklch": {
    "l": 0.36286,
    "c": 0.18008,
    "h": 270.7
  },
  "luminance": 0.04174
}

Semantic roles & 50–950 ramp

primary

#21289A

secondary

#C0BA57

accent

#DE40E8

background

#F7F5FB

surface

#EEEAF6

border

#C9C6D0

text

#090512

muted

#7B7981

Preview Lab

Preview with #21289A

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

Preview Lab → · Contrast checker → · Palette generator →