#21689D#21689D

#21689D is a mid, moderate cyan. Relative luminance 0.127; OKLCH L 50.0% C 0.109 H 245.4°. Best body text is #FFFFFF at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#21689D
RGB	rgb(33, 104, 157)
HSL	hsl(206, 65%, 37%)
HSV	hsv(206, 79%, 62%)
CMYK	cmyk(79%, 33.8%, 0%, 38.4%)
CIE-LAB	lab(42.24, -2.59, -34.90)
CIE-LCH	lch(42.24, 34.99, 265.75°)
OKLab	oklab(50.02% -0.0453 -0.0991)
OKLCH	oklch(50.02% 0.109 245.4)
XYZ	xyz(11.6610, 12.6569, 33.7202)
Luminance	0.1266 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21689D #9D5621

analogous

#219D94 #21689D #212A9D

triadic

#21689D #9D2168 #689D21

tetradic

#21689D #94219D #9D5621 #2A9D21

square

#21689D #94219D #9D5621 #2A9D21

split-complementary

#21689D #9D212A #9D9421

monochromatic

#0C2538 #16476A #21689D #2C89D0 #5CA6DD

Accessibility & contrast

On white

5.95

#21689D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#21689D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21689D

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21689D	#FFFFFF	#000000	##FFFFFF
##21689D	1.00	5.95	3.53	5.95
#FFFFFF	5.95	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F6A9F

Deuteranopia (green-blind)

#3E5F9C

Tritanopia (blue-blind)

#00757B

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #21689d;
/* rgb */ color: rgb(33, 104, 157);
/* oklch */ color: oklch(50.0% 0.109 245.4);

Tailwind

colors: {
  custom: {
    50: '#7092ba',
    500: '#21689d',
    950: '#000000',
  },
}

SCSS

$custom: #21689d;
$custom-light: #7092ba;
$custom-dark: #000000;

JSON

{
  "hex": "#21689d",
  "rgb": {
    "r": 33,
    "g": 104,
    "b": 157
  },
  "hsl": {
    "h": 205.645,
    "s": 65.263,
    "l": 37.255
  },
  "oklch": {
    "l": 0.50018,
    "c": 0.109,
    "h": 245.4
  },
  "luminance": 0.12658
}

Semantic roles & 50–950 ramp

primary

#21689D

secondary

#C18559

accent

#8840E8

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#090D11

muted

#7B7D80

Preview Lab

Preview with #21689D

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

Preview Lab → · Contrast checker → · Palette generator →