#21558D#21558D

#21558D is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 44.4% C 0.107 H 252.9°. Best body text is #FFFFFF at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#21558D
RGB	rgb(33, 85, 141)
HSL	hsl(211, 62%, 34%)
HSV	hsv(211, 77%, 55%)
CMYK	cmyk(76.6%, 39.7%, 0%, 44.7%)
CIE-LAB	lab(35.48, 3.27, -35.99)
CIE-LCH	lch(35.48, 36.13, 275.18°)
OKLab	oklab(44.43% -0.0317 -0.1026)
OKLCH	oklch(44.43% 0.107 252.9)
XYZ	xyz(8.6816, 8.7424, 26.4240)
Luminance	0.0874 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21558D #8D5921

analogous

#218B8D #21558D #23218D

triadic

#21558D #8D2155 #558D21

tetradic

#21558D #8D218B #8D5921 #218D23

square

#21558D #8D218B #8D5921 #218D23

split-complementary

#21558D #8D2321 #8B8D21

monochromatic

#0A192A #15375B #21558D #2D73BF #5292D6

Accessibility & contrast

On white

7.64

#21558D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#21558D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21558D

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21558D	#FFFFFF	#000000	##FFFFFF
##21558D	1.00	7.64	2.75	7.64
#FFFFFF	7.64	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B598F

Deuteranopia (green-blind)

#2A4F8C

Tritanopia (blue-blind)

#00626A

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #21558d;
/* rgb */ color: rgb(33, 85, 141);
/* oklch */ color: oklch(44.4% 0.107 252.9);

Tailwind

colors: {
  custom: {
    50: '#6c84ae',
    500: '#21558d',
    950: '#000000',
  },
}

SCSS

$custom: #21558d;
$custom-light: #6c84ae;
$custom-dark: #000000;

JSON

{
  "hex": "#21558d",
  "rgb": {
    "r": 33,
    "g": 85,
    "b": 141
  },
  "hsl": {
    "h": 211.111,
    "s": 62.069,
    "l": 34.118
  },
  "oklch": {
    "l": 0.44425,
    "c": 0.1074,
    "h": 252.9
  },
  "luminance": 0.08743
}

Semantic roles & 50–950 ramp

primary

#21558D

secondary

#BA8750

accent

#9743E5

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#080A10

muted

#7A7C7F

Preview Lab

Preview with #21558D

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

Preview Lab → · Contrast checker → · Palette generator →