#21587F#21587F

#21587F is a dark, moderate cyan. Relative luminance 0.088; OKLCH L 44.3% C 0.086 H 243.1°. Best body text is #FFFFFF at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#21587F
RGB	rgb(33, 88, 127)
HSL	hsl(205, 59%, 31%)
HSV	hsv(205, 74%, 50%)
CMYK	cmyk(74%, 30.7%, 0%, 50.2%)
CIE-LAB	lab(35.66, -4.06, -27.14)
CIE-LCH	lch(35.66, 27.44, 261.50°)
OKLab	oklab(44.32% -0.0389 -0.0767)
OKLCH	oklch(44.32% 0.086 243.1)
XYZ	xyz(7.9462, 8.8342, 21.3609)
Luminance	0.0883 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21587F #7F4821

analogous

#217F77 #21587F #21297F

triadic

#21587F #7F2158 #587F21

tetradic

#21587F #77217F #7F4821 #297F21

square

#21587F #77217F #7F4821 #297F21

split-complementary

#21587F #7F2129 #7F7721

monochromatic

#08151E #14364E #21587F #2E7AB0 #4A99D0

Accessibility & contrast

On white

7.59

#21587F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#21587F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21587F

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21587F	#FFFFFF	#000000	##FFFFFF
##21587F	1.00	7.59	2.77	7.59
#FFFFFF	7.59	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#465981

Deuteranopia (green-blind)

#39507E

Tritanopia (blue-blind)

#006266

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #21587f;
/* rgb */ color: rgb(33, 88, 127);
/* oklch */ color: oklch(44.3% 0.086 243.1);

Tailwind

colors: {
  custom: {
    50: '#6987a4',
    500: '#21587f',
    950: '#000000',
  },
}

SCSS

$custom: #21587f;
$custom-light: #6987a4;
$custom-dark: #000000;

JSON

{
  "hex": "#21587f",
  "rgb": {
    "r": 33,
    "g": 88,
    "b": 127
  },
  "hsl": {
    "h": 204.894,
    "s": 58.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.44316,
    "c": 0.08601,
    "h": 243.1
  },
  "luminance": 0.08835
}

Semantic roles & 50–950 ramp

primary

#21587F

secondary

#B2754A

accent

#8746E2

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #21587F

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

Preview Lab → · Contrast checker → · Palette generator →