#21238C#21238C

#21238C is a dark, vivid blue. Relative luminance 0.034; OKLCH L 34.0% C 0.167 H 272.3°. Best body text is #FFFFFF at 12.47:1 contrast (WCAG AA passes).

Color values

HEX	#21238C
RGB	rgb(33, 35, 140)
HSL	hsl(239, 62%, 34%)
HSV	hsv(239, 76%, 55%)
CMYK	cmyk(76.4%, 75%, 0%, 45.1%)
CIE-LAB	lab(21.65, 36.38, -57.81)
CIE-LCH	lch(21.65, 68.30, 302.18°)
OKLab	oklab(33.99% 0.0067 -0.1673)
OKLCH	oklch(33.99% 0.167 272.3)
XYZ	xyz(5.9603, 3.4182, 25.1515)
Luminance	0.0342 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21238C #8C8A21

analogous

#21598C #21238C #55218C

triadic

#21238C #8C2123 #238C21

tetradic

#21238C #8C2159 #8C8A21 #218C55

square

#21238C #8C2159 #8C8A21 #218C55

split-complementary

#21238C #8C5521 #598C21

monochromatic

#0A0A29 #15175A #21238C #2D2FBE #5154D6

Accessibility & contrast

On white

12.47

#21238C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#21238C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21238C

12.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21238C	#FFFFFF	#000000	##FFFFFF
##21238C	1.00	12.47	1.68	12.47
#FFFFFF	12.47	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00398F

Deuteranopia (green-blind)

#002F8A

Tritanopia (blue-blind)

#004155

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #21238c;
/* rgb */ color: rgb(33, 35, 140);
/* oklch */ color: oklch(34.0% 0.167 272.3);

Tailwind

colors: {
  custom: {
    50: '#6f5faf',
    500: '#21238c',
    950: '#000000',
  },
}

SCSS

$custom: #21238c;
$custom-light: #6f5faf;
$custom-dark: #000000;

JSON

{
  "hex": "#21238c",
  "rgb": {
    "r": 33,
    "g": 35,
    "b": 140
  },
  "hsl": {
    "h": 238.879,
    "s": 61.85,
    "l": 33.922
  },
  "oklch": {
    "l": 0.33989,
    "c": 0.16743,
    "h": 272.3
  },
  "luminance": 0.03419
}

Semantic roles & 50–950 ramp

primary

#21238C

secondary

#B9B74F

accent

#E243E5

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090410

muted

#7B797F

Preview Lab

Preview with #21238C

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

Preview Lab → · Contrast checker → · Palette generator →