#21597E#21597E

#21597E is a dark, moderate cyan. Relative luminance 0.090; OKLCH L 44.5% C 0.084 H 241.4°. Best body text is #FFFFFF at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#21597E
RGB	rgb(33, 89, 126)
HSL	hsl(204, 58%, 31%)
HSV	hsv(204, 74%, 49%)
CMYK	cmyk(73.8%, 29.4%, 0%, 50.6%)
CIE-LAB	lab(35.93, -5.06, -26.10)
CIE-LCH	lch(35.93, 26.58, 259.03°)
OKLab	oklab(44.51% -0.0403 -0.0737)
OKLCH	oklch(44.51% 0.084 241.4)
XYZ	xyz(7.9640, 8.9736, 21.0470)
Luminance	0.0897 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21597E #7E4621

analogous

#217E74 #21597E #212A7E

triadic

#21597E #7E2159 #597E21

tetradic

#21597E #74217E #7E4621 #2A7E21

square

#21597E #74217E #7E4621 #2A7E21

split-complementary

#21597E #7E212A #7E7421

monochromatic

#08141D #14374E #21597E #2E7BAE #4A9AD0

Accessibility & contrast

On white

7.51

#21597E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#21597E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21597E

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21597E	#FFFFFF	#000000	##FFFFFF
##21597E	1.00	7.51	2.79	7.51
#FFFFFF	7.51	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#485980

Deuteranopia (green-blind)

#3B517D

Tritanopia (blue-blind)

#006266

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #21597e;
/* rgb */ color: rgb(33, 89, 126);
/* oklch */ color: oklch(44.5% 0.084 241.4);

Tailwind

colors: {
  custom: {
    50: '#6987a3',
    500: '#21597e',
    950: '#000000',
  },
}

SCSS

$custom: #21597e;
$custom-light: #6987a3;
$custom-dark: #000000;

JSON

{
  "hex": "#21597e",
  "rgb": {
    "r": 33,
    "g": 89,
    "b": 126
  },
  "hsl": {
    "h": 203.871,
    "s": 58.491,
    "l": 31.176
  },
  "oklch": {
    "l": 0.44513,
    "c": 0.08399,
    "h": 241.4
  },
  "luminance": 0.08974
}

Semantic roles & 50–950 ramp

primary

#21597E

secondary

#B1734A

accent

#8446E2

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #21597E

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

Preview Lab → · Contrast checker → · Palette generator →