#21578F#21578F

#21578F is a mid, moderate cyan. Relative luminance 0.091; OKLCH L 45.0% C 0.108 H 252.2°. Best body text is #FFFFFF at 7.43:1 contrast (WCAG AA passes).

Color values

HEX	#21578F
RGB	rgb(33, 87, 143)
HSL	hsl(211, 63%, 35%)
HSV	hsv(211, 77%, 56%)
CMYK	cmyk(76.9%, 39.2%, 0%, 43.9%)
CIE-LAB	lab(36.22, 2.75, -36.03)
CIE-LCH	lch(36.22, 36.14, 274.36°)
OKLab	oklab(45.04% -0.0331 -0.1027)
OKLCH	oklch(45.04% 0.108 252.2)
XYZ	xyz(8.9915, 9.1219, 27.2681)
Luminance	0.0912 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21578F #8F5921

analogous

#218E8F #21578F #22218F

triadic

#21578F #8F2157 #578F21

tetradic

#21578F #8F218E #8F5921 #218F22

square

#21578F #8F218E #8F5921 #218F22

split-complementary

#21578F #8F2221 #8E8F21

monochromatic

#0A1A2C #16395D #21578F #2C75C1 #5394D7

Accessibility & contrast

On white

7.43

#21578F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#21578F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21578F

7.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21578F	#FFFFFF	#000000	##FFFFFF
##21578F	1.00	7.43	2.82	7.43
#FFFFFF	7.43	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D5B91

Deuteranopia (green-blind)

#2C518E

Tritanopia (blue-blind)

#00646C

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #21578f;
/* rgb */ color: rgb(33, 87, 143);
/* oklch */ color: oklch(45.0% 0.108 252.2);

Tailwind

colors: {
  custom: {
    50: '#6d86b0',
    500: '#21578f',
    950: '#000000',
  },
}

SCSS

$custom: #21578f;
$custom-light: #6d86b0;
$custom-dark: #000000;

JSON

{
  "hex": "#21578f",
  "rgb": {
    "r": 33,
    "g": 87,
    "b": 143
  },
  "hsl": {
    "h": 210.545,
    "s": 62.5,
    "l": 34.51
  },
  "oklch": {
    "l": 0.45036,
    "c": 0.10793,
    "h": 252.2
  },
  "luminance": 0.09123
}

Semantic roles & 50–950 ramp

primary

#21578F

secondary

#BB8751

accent

#9542E6

background

#F7F8FA

surface

#EDEFF5

border

#C8CACF

text

#080B10

muted

#7B7C7F

Preview Lab

Preview with #21578F

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

Preview Lab → · Contrast checker → · Palette generator →