#21517D#21517D

#21517D is a dark, moderate cyan. Relative luminance 0.077; OKLCH L 42.4% C 0.090 H 249.1°. Best body text is #FFFFFF at 8.27:1 contrast (WCAG AA passes).

Color values

HEX	#21517D
RGB	rgb(33, 81, 125)
HSL	hsl(209, 58%, 31%)
HSV	hsv(209, 74%, 49%)
CMYK	cmyk(73.6%, 35.2%, 0%, 51%)
CIE-LAB	lab(33.32, -0.36, -29.58)
CIE-LCH	lch(33.32, 29.59, 269.30°)
OKLab	oklab(42.44% -0.0321 -0.084)
OKLCH	oklch(42.44% 0.09 249.1)
XYZ	xyz(7.2699, 7.6881, 20.4989)
Luminance	0.0769 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21517D #7D4D21

analogous

#217D7B #21517D #21237D

triadic

#21517D #7D2151 #517D21

tetradic

#21517D #7B217D #7D4D21 #237D21

square

#21517D #7B217D #7D4D21 #237D21

split-complementary

#21517D #7D2123 #7D7B21

monochromatic

#07121C #14324D #21517D #2E70AD #498FCF

Accessibility & contrast

On white

8.27

#21517D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#21517D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21517D

8.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21517D	#FFFFFF	#000000	##FFFFFF
##21517D	1.00	8.27	2.54	8.27
#FFFFFF	8.27	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D537F

Deuteranopia (green-blind)

#304A7C

Tritanopia (blue-blind)

#005B61

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #21517d;
/* rgb */ color: rgb(33, 81, 125);
/* oklch */ color: oklch(42.4% 0.090 249.1);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#21517d",
  "rgb": {
    "r": 33,
    "g": 81,
    "b": 125
  },
  "hsl": {
    "h": 208.696,
    "s": 58.228,
    "l": 30.98
  },
  "oklch": {
    "l": 0.42438,
    "c": 0.08989,
    "h": 249.1
  },
  "luminance": 0.07689
}

Semantic roles & 50–950 ramp

primary

#21517D

secondary

#B07B4A

accent

#9146E1

background

#F6F7FA

surface

#EBEEF3

border

#C6C9CD

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #21517D

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

Preview Lab → · Contrast checker → · Palette generator →