#21759C#21759C

#21759C is a mid, moderate cyan. Relative luminance 0.154; OKLCH L 53.2% C 0.098 H 233.6°. Best body text is #FFFFFF at 5.14:1 contrast (WCAG AA passes).

Color values

HEX#21759C
RGBrgb(33, 117, 156)
HSLhsl(199, 65%, 37%)
HSVhsv(199, 79%, 61%)
CMYKcmyk(78.8%, 25%, 0%, 38.8%)
CIE-LABlab(46.24, -10.74, -28.04)
CIE-LCHlch(46.24, 30.02, 249.05°)
OKLaboklab(53.17% -0.0582 -0.079)
OKLCHoklch(53.17% 0.098 233.6)
XYZxyz(12.9868, 15.4446, 33.7427)
Luminance0.1545 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#21759C #9C4821
analogous
#219C85 #21759C #21389C
triadic
#21759C #9C2175 #759C21
tetradic
#21759C #85219C #9C4821 #389C21
square
#21759C #85219C #9C4821 #389C21
split-complementary
#21759C #9C2138 #9C8521
monochromatic
#0C2937 #164F69 #21759C #2C9BCF #5BB3DC

Accessibility & contrast

On white

5.14
#21759C on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.09
#21759C on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21759C
5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##21759C#FFFFFF#000000##FFFFFF
##21759C1.005.144.095.14
#FFFFFF5.141.0021.001.00
#0000004.0921.001.0021.00
##FFFFFF5.141.0021.001.00

Color blindness preview

Protanopia (red-blind)
#62749E
Deuteranopia (green-blind)
#51689B
Tritanopia (blue-blind)
#007F82
Achromatopsia (no color)
#6E6E6E

Design tokens & code

CSS
--color: #21759c;
/* rgb */ color: rgb(33, 117, 156);
/* oklch */ color: oklch(53.2% 0.098 233.6);
Tailwind
colors: {
  custom: {
    50: '#709cb9',
    500: '#21759c',
    950: '#000000',
  },
}
SCSS
$custom: #21759c;
$custom-light: #709cb9;
$custom-dark: #000000;
JSON
{
  "hex": "#21759c",
  "rgb": {
    "r": 33,
    "g": 117,
    "b": 156
  },
  "hsl": {
    "h": 199.024,
    "s": 65.079,
    "l": 37.059
  },
  "oklch": {
    "l": 0.53171,
    "c": 0.09818,
    "h": 233.6
  },
  "luminance": 0.15446
}

Semantic roles & 50–950 ramp

primary
#21759C
secondary
#C17958
accent
#7540E8
background
#F7F9FB
surface
#EDF2F6
border
#C8CCD0
text
#090E11
muted
#7B7E80

Preview Lab

Preview with #21759C

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

Preview Lab → · Contrast checker → · Palette generator →

#21759C Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva