#21557E#21557E

#21557E is a dark, moderate cyan. Relative luminance 0.083; OKLCH L 43.5% C 0.087 H 245.7°. Best body text is #FFFFFF at 7.88:1 contrast (WCAG AA passes).

Color values

HEX	#21557E
RGB	rgb(33, 85, 126)
HSL	hsl(206, 58%, 31%)
HSV	hsv(206, 74%, 49%)
CMYK	cmyk(73.8%, 32.5%, 0%, 50.6%)
CIE-LAB	lab(34.65, -2.54, -28.11)
CIE-LCH	lch(34.65, 28.22, 264.83°)
OKLab	oklab(43.5% -0.036 -0.0796)
OKLCH	oklch(43.5% 0.087 245.7)
XYZ	xyz(7.6402, 8.3258, 20.9390)
Luminance	0.0833 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21557E #7E4A21

analogous

#217E78 #21557E #21267E

triadic

#21557E #7E2155 #557E21

tetradic

#21557E #78217E #7E4A21 #267E21

square

#21557E #78217E #7E4A21 #267E21

split-complementary

#21557E #7E2126 #7E7821

monochromatic

#08141D #14344E #21557E #2E76AE #4A95D0

Accessibility & contrast

On white

7.88

#21557E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#21557E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21557E

7.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21557E	#FFFFFF	#000000	##FFFFFF
##21557E	1.00	7.88	2.67	7.88
#FFFFFF	7.88	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#425680

Deuteranopia (green-blind)

#354E7D

Tritanopia (blue-blind)

#005F64

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #21557e;
/* rgb */ color: rgb(33, 85, 126);
/* oklch */ color: oklch(43.5% 0.087 245.7);

Tailwind

colors: {
  custom: {
    50: '#6984a3',
    500: '#21557e',
    950: '#000000',
  },
}

SCSS

$custom: #21557e;
$custom-light: #6984a3;
$custom-dark: #000000;

JSON

{
  "hex": "#21557e",
  "rgb": {
    "r": 33,
    "g": 85,
    "b": 126
  },
  "hsl": {
    "h": 206.452,
    "s": 58.491,
    "l": 31.176
  },
  "oklch": {
    "l": 0.43501,
    "c": 0.08737,
    "h": 245.7
  },
  "luminance": 0.08327
}

Semantic roles & 50–950 ramp

primary

#21557E

secondary

#B1774A

accent

#8B46E2

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #21557E

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

Preview Lab → · Contrast checker → · Palette generator →