#21557C#21557C

#21557C is a dark, moderate cyan. Relative luminance 0.083; OKLCH L 43.4% C 0.085 H 244.4°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#21557C
RGB	rgb(33, 85, 124)
HSL	hsl(206, 58%, 31%)
HSV	hsv(206, 73%, 49%)
CMYK	cmyk(73.4%, 31.5%, 0%, 51.4%)
CIE-LAB	lab(34.55, -3.30, -27.04)
CIE-LCH	lch(34.55, 27.24, 263.03°)
OKLab	oklab(43.39% -0.0367 -0.0765)
OKLCH	oklch(43.39% 0.085 244.4)
XYZ	xyz(7.5124, 8.2747, 20.2661)
Luminance	0.0828 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21557C #7C4821

analogous

#217C75 #21557C #21277C

triadic

#21557C #7C2155 #557C21

tetradic

#21557C #75217C #7C4821 #277C21

square

#21557C #75217C #7C4821 #277C21

split-complementary

#21557C #7C2127 #7C7521

monochromatic

#07131B #14344C #21557C #2E76AC #4995CF

Accessibility & contrast

On white

7.91

#21557C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#21557C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21557C

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21557C	#FFFFFF	#000000	##FFFFFF
##21557C	1.00	7.91	2.66	7.91
#FFFFFF	7.91	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#43567E

Deuteranopia (green-blind)

#374D7B

Tritanopia (blue-blind)

#005E63

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #21557c;
/* rgb */ color: rgb(33, 85, 124);
/* oklch */ color: oklch(43.4% 0.085 244.4);

Tailwind

colors: {
  custom: {
    50: '#6984a2',
    500: '#21557c',
    950: '#000000',
  },
}

SCSS

$custom: #21557c;
$custom-light: #6984a2;
$custom-dark: #000000;

JSON

{
  "hex": "#21557c",
  "rgb": {
    "r": 33,
    "g": 85,
    "b": 124
  },
  "hsl": {
    "h": 205.714,
    "s": 57.962,
    "l": 30.784
  },
  "oklch": {
    "l": 0.43385,
    "c": 0.08481,
    "h": 244.4
  },
  "luminance": 0.08276
}

Semantic roles & 50–950 ramp

primary

#21557C

secondary

#AF754A

accent

#8947E1

background

#F6F8FA

surface

#EBEFF3

border

#C6CACD

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #21557C

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

Preview Lab → · Contrast checker → · Palette generator →