#21589B#21589B

#21589B is a mid, vivid cyan. Relative luminance 0.097; OKLCH L 46.1% C 0.123 H 255.4°. Best body text is #FFFFFF at 7.16:1 contrast (WCAG AA passes).

Color values

HEX	#21589B
RGB	rgb(33, 88, 155)
HSL	hsl(213, 65%, 37%)
HSV	hsv(213, 79%, 61%)
CMYK	cmyk(78.7%, 43.2%, 0%, 39.2%)
CIE-LAB	lab(37.24, 6.80, -41.65)
CIE-LCH	lch(37.24, 42.20, 279.28°)
OKLab	oklab(46.07% -0.0311 -0.1192)
OKLCH	oklch(46.07% 0.123 255.4)
XYZ	xyz(10.0311, 9.6682, 32.3415)
Luminance	0.0967 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21589B #9B6421

analogous

#21959B #21589B #27219B

triadic

#21589B #9B2158 #589B21

tetradic

#21589B #9B2195 #9B6421 #219B27

square

#21589B #9B2195 #9B6421 #219B27

split-complementary

#21589B #9B2721 #959B21

monochromatic

#0C1F36 #163B69 #21589B #2C75CD #5A95DC

Accessibility & contrast

On white

7.16

#21589B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#21589B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21589B

7.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21589B	#FFFFFF	#000000	##FFFFFF
##21589B	1.00	7.16	2.93	7.16
#FFFFFF	7.16	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#375E9E

Deuteranopia (green-blind)

#21529A

Tritanopia (blue-blind)

#006872

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #21589b;
/* rgb */ color: rgb(33, 88, 155);
/* oklch */ color: oklch(46.1% 0.123 255.4);

Tailwind

colors: {
  custom: {
    50: '#6f86b9',
    500: '#21589b',
    950: '#000000',
  },
}

SCSS

$custom: #21589b;
$custom-light: #6f86b9;
$custom-dark: #000000;

JSON

{
  "hex": "#21589b",
  "rgb": {
    "r": 33,
    "g": 88,
    "b": 155
  },
  "hsl": {
    "h": 212.951,
    "s": 64.894,
    "l": 36.863
  },
  "oklch": {
    "l": 0.46065,
    "c": 0.12319,
    "h": 255.4
  },
  "luminance": 0.09669
}

Semantic roles & 50–950 ramp

primary

#21589B

secondary

#C09158

accent

#9C40E8

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080B11

muted

#7B7C80

Preview Lab

Preview with #21589B

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

Preview Lab → · Contrast checker → · Palette generator →