#21588C#21588C

#21588C is a mid, moderate cyan. Relative luminance 0.092; OKLCH L 45.1% C 0.103 H 250.2°. Best body text is #FFFFFF at 7.40:1 contrast (WCAG AA passes).

Color values

HEX	#21588C
RGB	rgb(33, 88, 140)
HSL	hsl(209, 62%, 34%)
HSV	hsv(209, 76%, 55%)
CMYK	cmyk(76.4%, 37.1%, 0%, 45.1%)
CIE-LAB	lab(36.36, 0.93, -33.99)
CIE-LCH	lch(36.36, 34.00, 271.58°)
OKLab	oklab(45.09% -0.0348 -0.0967)
OKLCH	oklch(45.09% 0.103 250.2)
XYZ	xyz(8.8488, 9.1952, 26.1144)
Luminance	0.0920 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21588C #8C5521

analogous

#218C8B #21588C #21228C

triadic

#21588C #8C2158 #588C21

tetradic

#21588C #8B218C #8C5521 #228C21

square

#21588C #8B218C #8C5521 #228C21

split-complementary

#21588C #8C2122 #8C8B21

monochromatic

#0A1A29 #15395A #21588C #2D77BE #5196D6

Accessibility & contrast

On white

7.40

#21588C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#21588C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21588C

7.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21588C	#FFFFFF	#000000	##FFFFFF
##21588C	1.00	7.40	2.84	7.40
#FFFFFF	7.40	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#405B8E

Deuteranopia (green-blind)

#30518B

Tritanopia (blue-blind)

#00646B

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #21588c;
/* rgb */ color: rgb(33, 88, 140);
/* oklch */ color: oklch(45.1% 0.103 250.2);

Tailwind

colors: {
  custom: {
    50: '#6c86ae',
    500: '#21588c',
    950: '#000000',
  },
}

SCSS

$custom: #21588c;
$custom-light: #6c86ae;
$custom-dark: #000000;

JSON

{
  "hex": "#21588c",
  "rgb": {
    "r": 33,
    "g": 88,
    "b": 140
  },
  "hsl": {
    "h": 209.159,
    "s": 61.85,
    "l": 33.922
  },
  "oklch": {
    "l": 0.4509,
    "c": 0.10282,
    "h": 250.2
  },
  "luminance": 0.09196
}

Semantic roles & 50–950 ramp

primary

#21588C

secondary

#B9834F

accent

#9243E5

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#080B10

muted

#7A7C7F

Preview Lab

Preview with #21588C

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

Preview Lab → · Contrast checker → · Palette generator →