#21708A#21708A

#21708A is a mid, moderate cyan. Relative luminance 0.137; OKLCH L 51.0% C 0.084 H 224.5°. Best body text is #FFFFFF at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#21708A
RGB	rgb(33, 112, 138)
HSL	hsl(195, 61%, 34%)
HSV	hsv(195, 76%, 54%)
CMYK	cmyk(76.1%, 18.8%, 0%, 45.9%)
CIE-LAB	lab(43.87, -14.33, -21.04)
CIE-LCH	lch(43.87, 25.46, 235.75°)
OKLab	oklab(51.02% -0.06 -0.0589)
OKLCH	oklch(51.02% 0.084 224.5)
XYZ	xyz(11.0069, 13.7454, 26.1128)
Luminance	0.1375 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21708A #8A3B21

analogous

#218A6F #21708A #213B8A

triadic

#21708A #8A2170 #708A21

tetradic

#21708A #6F218A #8A3B21 #3B8A21

square

#21708A #6F218A #8A3B21 #3B8A21

split-complementary

#21708A #8A213B #8A6F21

monochromatic

#092027 #154859 #21708A #2D98BB #50B4D5

Accessibility & contrast

On white

5.60

#21708A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#21708A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21708A

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21708A	#FFFFFF	#000000	##FFFFFF
##21708A	1.00	5.60	3.75	5.60
#FFFFFF	5.60	1.00	21.00	1.00
#000000	3.75	21.00	1.00	21.00
##FFFFFF	5.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#616D8B

Deuteranopia (green-blind)

#53638A

Tritanopia (blue-blind)

#007878

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #21708a;
/* rgb */ color: rgb(33, 112, 138);
/* oklch */ color: oklch(51.0% 0.084 224.5);

Tailwind

colors: {
  custom: {
    50: '#6d99ac',
    500: '#21708a',
    950: '#000000',
  },
}

SCSS

$custom: #21708a;
$custom-light: #6d99ac;
$custom-dark: #000000;

JSON

{
  "hex": "#21708a",
  "rgb": {
    "r": 33,
    "g": 112,
    "b": 138
  },
  "hsl": {
    "h": 194.857,
    "s": 61.404,
    "l": 33.529
  },
  "oklch": {
    "l": 0.51015,
    "c": 0.08414,
    "h": 224.5
  },
  "luminance": 0.13747
}

Semantic roles & 50–950 ramp

primary

#21708A

secondary

#B9694E

accent

#6B43E5

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080D10

muted

#7B7E7F

Preview Lab

Preview with #21708A

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

Preview Lab → · Contrast checker → · Palette generator →