#21389E#21389E

#21389E is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.5% C 0.167 H 267.7°. Best body text is #FFFFFF at 9.89:1 contrast (WCAG AA passes).

Color values

HEX	#21389E
RGB	rgb(33, 56, 158)
HSL	hsl(229, 65%, 37%)
HSV	hsv(229, 79%, 62%)
CMYK	cmyk(79.1%, 64.6%, 0%, 38%)
CIE-LAB	lab(28.43, 29.52, -57.73)
CIE-LCH	lch(28.43, 64.84, 297.08°)
OKLab	oklab(39.45% -0.0066 -0.167)
OKLCH	oklch(39.45% 0.167 267.7)
XYZ	xyz(8.2108, 5.6194, 32.9930)
Luminance	0.0562 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21389E #9E8721

analogous

#21779E #21389E #49219E

triadic

#21389E #9E2138 #389E21

tetradic

#21389E #9E2177 #9E8721 #219E49

square

#21389E #9E2177 #9E8721 #219E49

split-complementary

#21389E #9E4921 #779E21

monochromatic

#0C1439 #16266B #21389E #2C4AD1 #5C74DD

Accessibility & contrast

On white

9.89

#21389E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#21389E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21389E

9.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21389E	#FFFFFF	#000000	##FFFFFF
##21389E	1.00	9.89	2.12	9.89
#FFFFFF	9.89	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049A1

Deuteranopia (green-blind)

#003D9C

Tritanopia (blue-blind)

#005365

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #21389e;
/* rgb */ color: rgb(33, 56, 158);
/* oklch */ color: oklch(39.5% 0.167 267.7);

Tailwind

colors: {
  custom: {
    50: '#726ebc',
    500: '#21389e',
    950: '#000000',
  },
}

SCSS

$custom: #21389e;
$custom-light: #726ebc;
$custom-dark: #000000;

JSON

{
  "hex": "#21389e",
  "rgb": {
    "r": 33,
    "g": 56,
    "b": 158
  },
  "hsl": {
    "h": 228.96,
    "s": 65.445,
    "l": 37.451
  },
  "oklch": {
    "l": 0.39452,
    "c": 0.16715,
    "h": 267.7
  },
  "luminance": 0.0562
}

Semantic roles & 50–950 ramp

primary

#21389E

secondary

#C1AE59

accent

#C93FE8

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #21389E

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

Preview Lab → · Contrast checker → · Palette generator →