#21587E#21587E

#21587E is a dark, moderate cyan. Relative luminance 0.088; OKLCH L 44.3% C 0.085 H 242.5°. Best body text is #FFFFFF at 7.60:1 contrast (WCAG AA passes).

Color values

HEX	#21587E
RGB	rgb(33, 88, 126)
HSL	hsl(205, 58%, 31%)
HSV	hsv(205, 74%, 49%)
CMYK	cmyk(73.8%, 30.2%, 0%, 50.6%)
CIE-LAB	lab(35.61, -4.43, -26.60)
CIE-LCH	lch(35.61, 26.97, 260.54°)
OKLab	oklab(44.26% -0.0392 -0.0752)
OKLCH	oklch(44.26% 0.085 242.5)
XYZ	xyz(7.8814, 8.8083, 21.0194)
Luminance	0.0881 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21587E #7E4721

analogous

#217E75 #21587E #21297E

triadic

#21587E #7E2158 #587E21

tetradic

#21587E #75217E #7E4721 #297E21

square

#21587E #75217E #7E4721 #297E21

split-complementary

#21587E #7E2129 #7E7521

monochromatic

#08141D #14364E #21587E #2E7AAE #4A99D0

Accessibility & contrast

On white

7.60

#21587E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#21587E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21587E

7.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21587E	#FFFFFF	#000000	##FFFFFF
##21587E	1.00	7.60	2.76	7.60
#FFFFFF	7.60	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#475980

Deuteranopia (green-blind)

#3A507D

Tritanopia (blue-blind)

#006165

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #21587e;
/* rgb */ color: rgb(33, 88, 126);
/* oklch */ color: oklch(44.3% 0.085 242.5);

Tailwind

colors: {
  custom: {
    50: '#6987a3',
    500: '#21587e',
    950: '#000000',
  },
}

SCSS

$custom: #21587e;
$custom-light: #6987a3;
$custom-dark: #000000;

JSON

{
  "hex": "#21587e",
  "rgb": {
    "r": 33,
    "g": 88,
    "b": 126
  },
  "hsl": {
    "h": 204.516,
    "s": 58.491,
    "l": 31.176
  },
  "oklch": {
    "l": 0.44259,
    "c": 0.08479,
    "h": 242.5
  },
  "luminance": 0.08809
}

Semantic roles & 50–950 ramp

primary

#21587E

secondary

#B1744A

accent

#8646E2

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #21587E

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

Preview Lab → · Contrast checker → · Palette generator →