#21487B#21487B

#21487B is a dark, moderate cyan. Relative luminance 0.064; OKLCH L 40.1% C 0.097 H 256.1°. Best body text is #FFFFFF at 9.22:1 contrast (WCAG AA passes).

Color values

HEX	#21487B
RGB	rgb(33, 72, 123)
HSL	hsl(214, 58%, 31%)
HSV	hsv(214, 73%, 48%)
CMYK	cmyk(73.2%, 41.5%, 0%, 51.8%)
CIE-LAB	lab(30.37, 4.79, -33.03)
CIE-LCH	lch(30.37, 33.37, 278.26°)
OKLab	oklab(40.09% -0.0233 -0.0942)
OKLCH	oklch(40.09% 0.097 256.1)
XYZ	xyz(6.5184, 6.3874, 19.6244)
Luminance	0.0639 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21487B #7B5421

analogous

#21757B #21487B #27217B

triadic

#21487B #7B2148 #487B21

tetradic

#21487B #7B2175 #7B5421 #217B27

square

#21487B #7B2175 #7B5421 #217B27

split-complementary

#21487B #7B2721 #757B21

monochromatic

#07101A #142C4B #21487B #2E64AB #4882CE

Accessibility & contrast

On white

9.22

#21487B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#21487B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21487B

9.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21487B	#FFFFFF	#000000	##FFFFFF
##21487B	1.00	9.22	2.28	9.22
#FFFFFF	9.22	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#304C7D

Deuteranopia (green-blind)

#22447A

Tritanopia (blue-blind)

#00545B

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #21487b;
/* rgb */ color: rgb(33, 72, 123);
/* oklch */ color: oklch(40.1% 0.097 256.1);

Tailwind

colors: {
  custom: {
    50: '#687aa1',
    500: '#21487b',
    950: '#000000',
  },
}

SCSS

$custom: #21487b;
$custom-light: #687aa1;
$custom-dark: #000000;

JSON

{
  "hex": "#21487b",
  "rgb": {
    "r": 33,
    "g": 72,
    "b": 123
  },
  "hsl": {
    "h": 214,
    "s": 57.692,
    "l": 30.588
  },
  "oklch": {
    "l": 0.40091,
    "c": 0.097,
    "h": 256.1
  },
  "luminance": 0.06388
}

Semantic roles & 50–950 ramp

primary

#21487B

secondary

#AE834A

accent

#9E47E1

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#07090F

muted

#7A7B7E

Preview Lab

Preview with #21487B

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

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