#21289E#21289E

#21289E is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.7% C 0.185 H 270.5°. Best body text is #FFFFFF at 11.28:1 contrast (WCAG AA passes).

Color values

HEX	#21289E
RGB	rgb(33, 40, 158)
HSL	hsl(237, 65%, 37%)
HSV	hsv(237, 79%, 62%)
CMYK	cmyk(79.1%, 74.7%, 0%, 38%)
CIE-LAB	lab(24.67, 39.70, -63.92)
CIE-LCH	lch(24.67, 75.25, 301.84°)
OKLab	oklab(36.72% 0.0015 -0.1851)
OKLCH	oklch(36.72% 0.185 270.5)
XYZ	xyz(7.5554, 4.3087, 32.7746)
Luminance	0.0431 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21289E #9E9721

analogous

#21679E #21289E #59219E

triadic

#21289E #9E2128 #289E21

tetradic

#21289E #9E2167 #9E9721 #219E59

square

#21289E #9E2167 #9E9721 #219E59

split-complementary

#21289E #9E5921 #679E21

monochromatic

#0C0E39 #161B6B #21289E #2C35D1 #5C64DD

Accessibility & contrast

On white

11.28

#21289E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#21289E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21289E

11.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21289E	#FFFFFF	#000000	##FFFFFF
##21289E	1.00	11.28	1.86	11.28
#FFFFFF	11.28	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0041A1

Deuteranopia (green-blind)

#00349C

Tritanopia (blue-blind)

#004A61

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #21289e;
/* rgb */ color: rgb(33, 40, 158);
/* oklch */ color: oklch(36.7% 0.185 270.5);

Tailwind

colors: {
  custom: {
    50: '#7363bc',
    500: '#21289e',
    950: '#000000',
  },
}

SCSS

$custom: #21289e;
$custom-light: #7363bc;
$custom-dark: #000000;

JSON

{
  "hex": "#21289e",
  "rgb": {
    "r": 33,
    "g": 40,
    "b": 158
  },
  "hsl": {
    "h": 236.64,
    "s": 65.445,
    "l": 37.451
  },
  "oklch": {
    "l": 0.36721,
    "c": 0.18513,
    "h": 270.5
  },
  "luminance": 0.0431
}

Semantic roles & 50–950 ramp

primary

#21289E

secondary

#C1BC59

accent

#DF3FE8

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #21289E

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

Preview Lab → · Contrast checker → · Palette generator →