#21659B#21659B

#21659B is a mid, moderate cyan. Relative luminance 0.120; OKLCH L 49.2% C 0.109 H 246.8°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX#21659B
RGBrgb(33, 101, 155)
HSLhsl(207, 65%, 37%)
HSVhsv(207, 79%, 61%)
CMYKcmyk(78.7%, 34.8%, 0%, 39.2%)
CIE-LABlab(41.21, -1.50, -35.34)
CIE-LCHlch(41.21, 35.37, 267.57°)
OKLaboklab(49.17% -0.0431 -0.1005)
OKLCHoklch(49.17% 0.109 246.8)
XYZxyz(11.1950, 11.9959, 32.7294)
Luminance0.1200 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#21659B #9B5721
analogous
#219B94 #21659B #21289B
triadic
#21659B #9B2165 #659B21
tetradic
#21659B #94219B #9B5721 #289B21
square
#21659B #94219B #9B5721 #289B21
split-complementary
#21659B #9B2128 #9B9421
monochromatic
#0C2336 #164469 #21659B #2C86CD #5AA3DC

Accessibility & contrast

On white

6.18
#21659B on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.40
#21659B on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21659B
6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##21659B#FFFFFF#000000##FFFFFF
##21659B1.006.183.406.18
#FFFFFF6.181.0021.001.00
#0000003.4021.001.0021.00
##FFFFFF6.181.0021.001.00

Color blindness preview

Protanopia (red-blind)
#4C679D
Deuteranopia (green-blind)
#3A5C9A
Tritanopia (blue-blind)
#007279
Achromatopsia (no color)
#616161

Design tokens & code

CSS
--color: #21659b;
/* rgb */ color: rgb(33, 101, 155);
/* oklch */ color: oklch(49.2% 0.109 246.8);
Tailwind
colors: {
  custom: {
    50: '#6f90b9',
    500: '#21659b',
    950: '#000000',
  },
}
SCSS
$custom: #21659b;
$custom-light: #6f90b9;
$custom-dark: #000000;
JSON
{
  "hex": "#21659b",
  "rgb": {
    "r": 33,
    "g": 101,
    "b": 155
  },
  "hsl": {
    "h": 206.557,
    "s": 64.894,
    "l": 36.863
  },
  "oklch": {
    "l": 0.4917,
    "c": 0.1093,
    "h": 246.8
  },
  "luminance": 0.11997
}

Semantic roles & 50–950 ramp

primary
#21659B
secondary
#C08658
accent
#8A40E8
background
#F7F8FB
surface
#EDF0F6
border
#C8CBD0
text
#080C11
muted
#7B7D80

Preview Lab

Preview with #21659B

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

Preview Lab → · Contrast checker → · Palette generator →

#21659B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva