#21557F#21557F

#21557F is a dark, moderate cyan. Relative luminance 0.084; OKLCH L 43.6% C 0.089 H 246.3°. Best body text is #FFFFFF at 7.86:1 contrast (WCAG AA passes).

Color values

HEX	#21557F
RGB	rgb(33, 85, 127)
HSL	hsl(207, 59%, 31%)
HSV	hsv(207, 74%, 50%)
CMYK	cmyk(74%, 33.1%, 0%, 50.2%)
CIE-LAB	lab(34.71, -2.16, -28.64)
CIE-LCH	lch(34.71, 28.72, 265.69°)
OKLab	oklab(43.56% -0.0357 -0.0812)
OKLCH	oklch(43.56% 0.089 246.3)
XYZ	xyz(7.7050, 8.3518, 21.2805)
Luminance	0.0835 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21557F #7F4B21

analogous

#217F7A #21557F #21267F

triadic

#21557F #7F2155 #557F21

tetradic

#21557F #7A217F #7F4B21 #267F21

square

#21557F #7A217F #7F4B21 #267F21

split-complementary

#21557F #7F2126 #7F7A21

monochromatic

#08141E #14344E #21557F #2E76B0 #4A94D0

Accessibility & contrast

On white

7.86

#21557F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#21557F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21557F

7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21557F	#FFFFFF	#000000	##FFFFFF
##21557F	1.00	7.86	2.67	7.86
#FFFFFF	7.86	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#425781

Deuteranopia (green-blind)

#354E7E

Tritanopia (blue-blind)

#005F64

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #21557f;
/* rgb */ color: rgb(33, 85, 127);
/* oklch */ color: oklch(43.6% 0.089 246.3);

Tailwind

colors: {
  custom: {
    50: '#6984a4',
    500: '#21557f',
    950: '#000000',
  },
}

SCSS

$custom: #21557f;
$custom-light: #6984a4;
$custom-dark: #000000;

JSON

{
  "hex": "#21557f",
  "rgb": {
    "r": 33,
    "g": 85,
    "b": 127
  },
  "hsl": {
    "h": 206.809,
    "s": 58.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.4356,
    "c": 0.08866,
    "h": 246.3
  },
  "luminance": 0.08353
}

Semantic roles & 50–950 ramp

primary

#21557F

secondary

#B2784A

accent

#8C46E2

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #21557F

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

Preview Lab → · Contrast checker → · Palette generator →