#21517E#21517E

#21517E is a dark, moderate cyan. Relative luminance 0.077; OKLCH L 42.5% C 0.091 H 249.6°. Best body text is #FFFFFF at 8.26:1 contrast (WCAG AA passes).

Color values

HEX	#21517E
RGB	rgb(33, 81, 126)
HSL	hsl(209, 58%, 31%)
HSV	hsv(209, 74%, 49%)
CMYK	cmyk(73.8%, 35.7%, 0%, 50.6%)
CIE-LAB	lab(33.38, 0.02, -30.12)
CIE-LCH	lch(33.38, 30.12, 270.05°)
OKLab	oklab(42.5% -0.0318 -0.0855)
OKLCH	oklch(42.5% 0.091 249.6)
XYZ	xyz(7.3341, 7.7137, 20.8370)
Luminance	0.0771 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21517E #7E4E21

analogous

#217E7C #21517E #21227E

triadic

#21517E #7E2151 #517E21

tetradic

#21517E #7C217E #7E4E21 #227E21

square

#21517E #7C217E #7E4E21 #227E21

split-complementary

#21517E #7E2122 #7E7C21

monochromatic

#08131D #14324E #21517E #2E70AE #4A8FD0

Accessibility & contrast

On white

8.26

#21517E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#21517E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21517E

8.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21517E	#FFFFFF	#000000	##FFFFFF
##21517E	1.00	8.26	2.54	8.26
#FFFFFF	8.26	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D5380

Deuteranopia (green-blind)

#2F4B7D

Tritanopia (blue-blind)

#005C61

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #21517e;
/* rgb */ color: rgb(33, 81, 126);
/* oklch */ color: oklch(42.5% 0.091 249.6);

Tailwind

colors: {
  custom: {
    50: '#6981a3',
    500: '#21517e',
    950: '#000000',
  },
}

SCSS

$custom: #21517e;
$custom-light: #6981a3;
$custom-dark: #000000;

JSON

{
  "hex": "#21517e",
  "rgb": {
    "r": 33,
    "g": 81,
    "b": 126
  },
  "hsl": {
    "h": 209.032,
    "s": 58.491,
    "l": 31.176
  },
  "oklch": {
    "l": 0.42499,
    "c": 0.09123,
    "h": 249.6
  },
  "luminance": 0.07715
}

Semantic roles & 50–950 ramp

primary

#21517E

secondary

#B17C4A

accent

#9146E2

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #21517E

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

Preview Lab → · Contrast checker → · Palette generator →