#21558A#21558A

#21558A is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 44.2% C 0.103 H 251.7°. Best body text is #FFFFFF at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#21558A
RGB	rgb(33, 85, 138)
HSL	hsl(210, 61%, 34%)
HSV	hsv(210, 76%, 54%)
CMYK	cmyk(76.1%, 38.4%, 0%, 45.9%)
CIE-LAB	lab(35.31, 2.09, -34.43)
CIE-LCH	lch(35.31, 34.50, 273.48°)
OKLab	oklab(44.23% -0.0324 -0.0981)
OKLCH	oklch(44.23% 0.103 251.7)
XYZ	xyz(8.4614, 8.6544, 25.2643)
Luminance	0.0866 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21558A #8A5621

analogous

#21898A #21558A #21218A

triadic

#21558A #8A2155 #558A21

tetradic

#21558A #8A2189 #8A5621 #218A21

square

#21558A #8A2189 #8A5621 #218A21

split-complementary

#21558A #8A2121 #898A21

monochromatic

#091827 #153759 #21558A #2D73BB #5092D5

Accessibility & contrast

On white

7.69

#21558A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#21558A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21558A

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21558A	#FFFFFF	#000000	##FFFFFF
##21558A	1.00	7.69	2.73	7.69
#FFFFFF	7.69	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C588C

Deuteranopia (green-blind)

#2D4F89

Tritanopia (blue-blind)

#006269

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #21558a;
/* rgb */ color: rgb(33, 85, 138);
/* oklch */ color: oklch(44.2% 0.103 251.7);

Tailwind

colors: {
  custom: {
    50: '#6b84ac',
    500: '#21558a',
    950: '#000000',
  },
}

SCSS

$custom: #21558a;
$custom-light: #6b84ac;
$custom-dark: #000000;

JSON

{
  "hex": "#21558a",
  "rgb": {
    "r": 33,
    "g": 85,
    "b": 138
  },
  "hsl": {
    "h": 210.286,
    "s": 61.404,
    "l": 33.529
  },
  "oklch": {
    "l": 0.44233,
    "c": 0.10331,
    "h": 251.7
  },
  "luminance": 0.08655
}

Semantic roles & 50–950 ramp

primary

#21558A

secondary

#B9844E

accent

#9543E5

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#080A10

muted

#7A7C7F

Preview Lab

Preview with #21558A

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

Preview Lab → · Contrast checker → · Palette generator →