#21517C#21517C

#21517C is a dark, moderate cyan. Relative luminance 0.077; OKLCH L 42.4% C 0.089 H 248.5°. Best body text is #FFFFFF at 8.29:1 contrast (WCAG AA passes).

Color values

HEX	#21517C
RGB	rgb(33, 81, 124)
HSL	hsl(208, 58%, 31%)
HSV	hsv(208, 73%, 49%)
CMYK	cmyk(73.4%, 34.7%, 0%, 51.4%)
CIE-LAB	lab(33.27, -0.75, -29.05)
CIE-LCH	lch(33.27, 29.06, 268.52°)
OKLab	oklab(42.38% -0.0324 -0.0824)
OKLCH	oklch(42.38% 0.089 248.5)
XYZ	xyz(7.2063, 7.6626, 20.1641)
Luminance	0.0766 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21517C #7C4C21

analogous

#217C79 #21517C #21237C

triadic

#21517C #7C2151 #517C21

tetradic

#21517C #79217C #7C4C21 #237C21

square

#21517C #79217C #7C4C21 #237C21

split-complementary

#21517C #7C2123 #7C7921

monochromatic

#07121B #14314C #21517C #2E71AC #498FCF

Accessibility & contrast

On white

8.29

#21517C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#21517C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21517C

8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21517C	#FFFFFF	#000000	##FFFFFF
##21517C	1.00	8.29	2.53	8.29
#FFFFFF	8.29	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E537E

Deuteranopia (green-blind)

#314A7B

Tritanopia (blue-blind)

#005B60

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #21517c;
/* rgb */ color: rgb(33, 81, 124);
/* oklch */ color: oklch(42.4% 0.089 248.5);

Tailwind

colors: {
  custom: {
    50: '#6981a2',
    500: '#21517c',
    950: '#000000',
  },
}

SCSS

$custom: #21517c;
$custom-light: #6981a2;
$custom-dark: #000000;

JSON

{
  "hex": "#21517c",
  "rgb": {
    "r": 33,
    "g": 81,
    "b": 124
  },
  "hsl": {
    "h": 208.352,
    "s": 57.962,
    "l": 30.784
  },
  "oklch": {
    "l": 0.42378,
    "c": 0.08854,
    "h": 248.5
  },
  "luminance": 0.07663
}

Semantic roles & 50–950 ramp

primary

#21517C

secondary

#AF7A4A

accent

#9047E1

background

#F6F7FA

surface

#EBEEF3

border

#C6C9CD

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #21517C

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

Preview Lab → · Contrast checker → · Palette generator →