#21548B#21548B

#21548B is a dark, moderate cyan. Relative luminance 0.085; OKLCH L 44.1% C 0.106 H 252.8°. Best body text is #FFFFFF at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#21548B
RGB	rgb(33, 84, 139)
HSL	hsl(211, 62%, 34%)
HSV	hsv(211, 76%, 55%)
CMYK	cmyk(76.3%, 39.6%, 0%, 45.5%)
CIE-LAB	lab(35.06, 3.13, -35.44)
CIE-LCH	lch(35.06, 35.58, 275.05°)
OKLab	oklab(44.05% -0.0312 -0.1011)
OKLCH	oklch(44.05% 0.106 252.8)
XYZ	xyz(8.4560, 8.5271, 25.6213)
Luminance	0.0853 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21548B #8B5821

analogous

#21898B #21548B #23218B

triadic

#21548B #8B2154 #548B21

tetradic

#21548B #8B2189 #8B5821 #218B23

square

#21548B #8B2189 #8B5821 #218B23

split-complementary

#21548B #8B2321 #898B21

monochromatic

#0A1828 #15365A #21548B #2D72BC #5191D6

Accessibility & contrast

On white

7.76

#21548B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#21548B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21548B

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21548B	#FFFFFF	#000000	##FFFFFF
##21548B	1.00	7.76	2.71	7.76
#FFFFFF	7.76	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A588D

Deuteranopia (green-blind)

#2A4E8A

Tritanopia (blue-blind)

#006168

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #21548b;
/* rgb */ color: rgb(33, 84, 139);
/* oklch */ color: oklch(44.1% 0.106 252.8);

Tailwind

colors: {
  custom: {
    50: '#6c83ad',
    500: '#21548b',
    950: '#000000',
  },
}

SCSS

$custom: #21548b;
$custom-light: #6c83ad;
$custom-dark: #000000;

JSON

{
  "hex": "#21548b",
  "rgb": {
    "r": 33,
    "g": 84,
    "b": 139
  },
  "hsl": {
    "h": 211.132,
    "s": 61.628,
    "l": 33.725
  },
  "oklch": {
    "l": 0.44054,
    "c": 0.10577,
    "h": 252.8
  },
  "luminance": 0.08528
}

Semantic roles & 50–950 ramp

primary

#21548B

secondary

#B9864F

accent

#9743E5

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#080A10

muted

#7A7C7F

Preview Lab

Preview with #21548B

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

Preview Lab → · Contrast checker → · Palette generator →