#21248B#21248B

#21248B is a dark, vivid blue. Relative luminance 0.034; OKLCH L 34.0% C 0.165 H 272.2°. Best body text is #FFFFFF at 12.43:1 contrast (WCAG AA passes).

Color values

HEX	#21248B
RGB	rgb(33, 36, 139)
HSL	hsl(238, 62%, 34%)
HSV	hsv(238, 76%, 55%)
CMYK	cmyk(76.3%, 74.1%, 0%, 45.5%)
CIE-LAB	lab(21.76, 35.41, -57.00)
CIE-LCH	lch(21.76, 67.11, 301.85°)
OKLab	oklab(34.04% 0.0063 -0.165)
OKLCH	oklch(34.04% 0.165 272.2)
XYZ	xyz(5.9167, 3.4485, 24.7749)
Luminance	0.0345 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21248B #8B8821

analogous

#21598B #21248B #53218B

triadic

#21248B #8B2124 #248B21

tetradic

#21248B #8B2159 #8B8821 #218B53

square

#21248B #8B2159 #8B8821 #218B53

split-complementary

#21248B #8B5321 #598B21

monochromatic

#0A0A28 #15175A #21248B #2D31BC #5155D6

Accessibility & contrast

On white

12.43

#21248B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#21248B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21248B

12.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21248B	#FFFFFF	#000000	##FFFFFF
##21248B	1.00	12.43	1.69	12.43
#FFFFFF	12.43	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00398E

Deuteranopia (green-blind)

#002F89

Tritanopia (blue-blind)

#004155

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #21248b;
/* rgb */ color: rgb(33, 36, 139);
/* oklch */ color: oklch(34.0% 0.165 272.2);

Tailwind

colors: {
  custom: {
    50: '#6f60ae',
    500: '#21248b',
    950: '#000000',
  },
}

SCSS

$custom: #21248b;
$custom-light: #6f60ae;
$custom-dark: #000000;

JSON

{
  "hex": "#21248b",
  "rgb": {
    "r": 33,
    "g": 36,
    "b": 139
  },
  "hsl": {
    "h": 238.302,
    "s": 61.628,
    "l": 33.725
  },
  "oklch": {
    "l": 0.34037,
    "c": 0.16508,
    "h": 272.2
  },
  "luminance": 0.03449
}

Semantic roles & 50–950 ramp

primary

#21248B

secondary

#B9B64F

accent

#E043E5

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #21248B

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

Preview Lab → · Contrast checker → · Palette generator →