#21708E#21708E

#21708E is a mid, moderate cyan. Relative luminance 0.139; OKLCH L 51.2% C 0.087 H 228.0°. Best body text is #FFFFFF at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#21708E
RGB	rgb(33, 112, 142)
HSL	hsl(197, 62%, 34%)
HSV	hsv(197, 77%, 56%)
CMYK	cmyk(76.8%, 21.1%, 0%, 44.3%)
CIE-LAB	lab(44.04, -12.91, -23.16)
CIE-LCH	lch(44.04, 26.52, 240.88°)
OKLab	oklab(51.21% -0.0585 -0.065)
OKLCH	oklch(51.21% 0.087 228)
XYZ	xyz(11.3019, 13.8633, 27.6662)
Luminance	0.1386 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21708E #8E3F21

analogous

#218E76 #21708E #21398E

triadic

#21708E #8E2170 #708E21

tetradic

#21708E #76218E #8E3F21 #398E21

square

#21708E #76218E #8E3F21 #398E21

split-complementary

#21708E #8E2139 #8E7621

monochromatic

#0A222B #15495C #21708E #2D97C0 #52B2D7

Accessibility & contrast

On white

5.57

#21708E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#21708E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21708E

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21708E	#FFFFFF	#000000	##FFFFFF
##21708E	1.00	5.57	3.77	5.57
#FFFFFF	5.57	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#606E8F

Deuteranopia (green-blind)

#52638E

Tritanopia (blue-blind)

#00797A

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #21708e;
/* rgb */ color: rgb(33, 112, 142);
/* oklch */ color: oklch(51.2% 0.087 228.0);

Tailwind

colors: {
  custom: {
    50: '#6d99af',
    500: '#21708e',
    950: '#000000',
  },
}

SCSS

$custom: #21708e;
$custom-light: #6d99af;
$custom-dark: #000000;

JSON

{
  "hex": "#21708e",
  "rgb": {
    "r": 33,
    "g": 112,
    "b": 142
  },
  "hsl": {
    "h": 196.514,
    "s": 62.286,
    "l": 34.314
  },
  "oklch": {
    "l": 0.51208,
    "c": 0.08745,
    "h": 228
  },
  "luminance": 0.13865
}

Semantic roles & 50–950 ramp

primary

#21708E

secondary

#BA6E50

accent

#6F42E5

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080D10

muted

#7B7E7F

Preview Lab

Preview with #21708E

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

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