#21738F#21738F

#21738F is a mid, moderate cyan. Relative luminance 0.146; OKLCH L 52.0% C 0.087 H 225.5°. Best body text is #FFFFFF at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#21738F
RGB	rgb(33, 115, 143)
HSL	hsl(195, 63%, 35%)
HSV	hsv(195, 77%, 56%)
CMYK	cmyk(76.9%, 19.6%, 0%, 43.9%)
CIE-LAB	lab(45.03, -14.26, -22.22)
CIE-LCH	lch(45.03, 26.40, 237.31°)
OKLab	oklab(52.02% -0.0612 -0.0623)
OKLCH	oklch(52.02% 0.087 225.5)
XYZ	xyz(11.7138, 14.5666, 28.1755)
Luminance	0.1457 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21738F #8F3D21

analogous

#218F74 #21738F #213C8F

triadic

#21738F #8F2173 #738F21

tetradic

#21738F #74218F #8F3D21 #3C8F21

square

#21738F #74218F #8F3D21 #3C8F21

split-complementary

#21738F #8F213C #8F7421

monochromatic

#0A232C #164B5D #21738F #2C9BC1 #53B6D7

Accessibility & contrast

On white

5.37

#21738F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.91

#21738F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21738F

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21738F	#FFFFFF	#000000	##FFFFFF
##21738F	1.00	5.37	3.91	5.37
#FFFFFF	5.37	1.00	21.00	1.00
#000000	3.91	21.00	1.00	21.00
##FFFFFF	5.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#647190

Deuteranopia (green-blind)

#55668F

Tritanopia (blue-blind)

#007B7C

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #21738f;
/* rgb */ color: rgb(33, 115, 143);
/* oklch */ color: oklch(52.0% 0.087 225.5);

Tailwind

colors: {
  custom: {
    50: '#6e9bb0',
    500: '#21738f',
    950: '#000000',
  },
}

SCSS

$custom: #21738f;
$custom-light: #6e9bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#21738f",
  "rgb": {
    "r": 33,
    "g": 115,
    "b": 143
  },
  "hsl": {
    "h": 195.273,
    "s": 62.5,
    "l": 34.51
  },
  "oklch": {
    "l": 0.52021,
    "c": 0.08729,
    "h": 225.5
  },
  "luminance": 0.14568
}

Semantic roles & 50–950 ramp

primary

#21738F

secondary

#BB6C51

accent

#6C42E6

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #21738F

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

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