#21288E#21288E

#21288E is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.0% C 0.165 H 271.3°. Best body text is #FFFFFF at 11.94:1 contrast (WCAG AA passes).

Color values

HEX	#21288E
RGB	rgb(33, 40, 142)
HSL	hsl(236, 62%, 34%)
HSV	hsv(236, 77%, 56%)
CMYK	cmyk(76.8%, 71.8%, 0%, 44.3%)
CIE-LAB	lab(22.98, 34.00, -56.86)
CIE-LCH	lch(22.98, 66.25, 300.87°)
OKLab	oklab(35% 0.0038 -0.1646)
OKLCH	oklch(35% 0.165 271.3)
XYZ	xyz(6.2668, 3.7932, 25.9878)
Luminance	0.0379 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21288E #8E8721

analogous

#215F8E #21288E #51218E

triadic

#21288E #8E2128 #288E21

tetradic

#21288E #8E215F #8E8721 #218E51

square

#21288E #8E215F #8E8721 #218E51

split-complementary

#21288E #8E5121 #5F8E21

monochromatic

#0A0C2B #151A5C #21288E #2D36C0 #525BD7

Accessibility & contrast

On white

11.94

#21288E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#21288E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21288E

11.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21288E	#FFFFFF	#000000	##FFFFFF
##21288E	1.00	11.94	1.76	11.94
#FFFFFF	11.94	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C91

Deuteranopia (green-blind)

#00328C

Tritanopia (blue-blind)

#004458

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #21288e;
/* rgb */ color: rgb(33, 40, 142);
/* oklch */ color: oklch(35.0% 0.165 271.3);

Tailwind

colors: {
  custom: {
    50: '#6f62b0',
    500: '#21288e',
    950: '#000000',
  },
}

SCSS

$custom: #21288e;
$custom-light: #6f62b0;
$custom-dark: #000000;

JSON

{
  "hex": "#21288e",
  "rgb": {
    "r": 33,
    "g": 40,
    "b": 142
  },
  "hsl": {
    "h": 236.147,
    "s": 62.286,
    "l": 34.314
  },
  "oklch": {
    "l": 0.35005,
    "c": 0.1646,
    "h": 271.3
  },
  "luminance": 0.03794
}

Semantic roles & 50–950 ramp

primary

#21288E

secondary

#BAB450

accent

#DB42E5

background

#F7F5FB

surface

#EDEAF6

border

#C8C6D0

text

#090511

muted

#7B7980

Preview Lab

Preview with #21288E

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

Preview Lab → · Contrast checker → · Palette generator →