#21597F#21597F

#21597F is a dark, moderate cyan. Relative luminance 0.090; OKLCH L 44.6% C 0.085 H 242.1°. Best body text is #FFFFFF at 7.50:1 contrast (WCAG AA passes).

Color values

HEX	#21597F
RGB	rgb(33, 89, 127)
HSL	hsl(204, 59%, 31%)
HSV	hsv(204, 74%, 50%)
CMYK	cmyk(74%, 29.9%, 0%, 50.2%)
CIE-LAB	lab(35.98, -4.68, -26.64)
CIE-LCH	lch(35.98, 27.04, 260.03°)
OKLab	oklab(44.57% -0.0399 -0.0753)
OKLCH	oklch(44.57% 0.085 242.1)
XYZ	xyz(8.0289, 8.9995, 21.3885)
Luminance	0.0900 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21597F #7F4721

analogous

#217F76 #21597F #212A7F

triadic

#21597F #7F2159 #597F21

tetradic

#21597F #76217F #7F4721 #2A7F21

square

#21597F #76217F #7F4721 #2A7F21

split-complementary

#21597F #7F212A #7F7621

monochromatic

#08151E #14374E #21597F #2E7BB0 #4A9AD0

Accessibility & contrast

On white

7.50

#21597F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#21597F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21597F

7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21597F	#FFFFFF	#000000	##FFFFFF
##21597F	1.00	7.50	2.80	7.50
#FFFFFF	7.50	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#485A81

Deuteranopia (green-blind)

#3B517E

Tritanopia (blue-blind)

#006266

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #21597f;
/* rgb */ color: rgb(33, 89, 127);
/* oklch */ color: oklch(44.6% 0.085 242.1);

Tailwind

colors: {
  custom: {
    50: '#6987a4',
    500: '#21597f',
    950: '#000000',
  },
}

SCSS

$custom: #21597f;
$custom-light: #6987a4;
$custom-dark: #000000;

JSON

{
  "hex": "#21597f",
  "rgb": {
    "r": 33,
    "g": 89,
    "b": 127
  },
  "hsl": {
    "h": 204.255,
    "s": 58.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.44569,
    "c": 0.08519,
    "h": 242.1
  },
  "luminance": 0.09
}

Semantic roles & 50–950 ramp

primary

#21597F

secondary

#B2744A

accent

#8546E2

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #21597F

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

Preview Lab → · Contrast checker → · Palette generator →