#59B1EF#59B1EF

#59B1EF is a light, vivid cyan. Relative luminance 0.398; OKLCH L 73.2% C 0.124 H 241.9°. Best body text is #000000 at 8.96:1 contrast (WCAG AA passes).

Color values

HEX#59B1EF
RGBrgb(89, 177, 239)
HSLhsl(205, 82%, 64%)
HSVhsv(205, 63%, 94%)
CMYKcmyk(62.8%, 25.9%, 0%, 6.3%)
CIE-LABlab(69.32, -7.98, -38.80)
CIE-LCHlch(69.32, 39.62, 258.38°)
OKLaboklab(73.17% -0.0584 -0.1091)
OKLCHoklch(73.17% 0.124 241.9)
XYZxyz(35.4161, 39.7966, 87.4597)
Luminance0.3980 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#59B1EF #EF9759
analogous
#59EFE2 #59B1EF #5966EF
triadic
#59B1EF #EF59B1 #B1EF59
tetradic
#59B1EF #E259EF #EF9759 #66EF59
square
#59B1EF #E259EF #EF9759 #66EF59
split-complementary
#59B1EF #EF5966 #EFE259
monochromatic
#1275BC #2197EA #59B1EF #91CBF4 #C9E5FA

Accessibility & contrast

On white

2.34
#59B1EF on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.96
#59B1EF on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #59B1EF
8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##59B1EF#FFFFFF#000000##000000
##59B1EF1.002.348.968.96
#FFFFFF2.341.0021.0021.00
#0000008.9621.001.001.00
##0000008.9621.001.001.00

Color blindness preview

Protanopia (red-blind)
#95B2F2
Deuteranopia (green-blind)
#81A3EE
Tritanopia (blue-blind)
#00C0C6
Achromatopsia (no color)
#A9A9A9

Design tokens & code

CSS
--color: #59b1ef;
/* rgb */ color: rgb(89, 177, 239);
/* oklch */ color: oklch(73.2% 0.124 241.9);
Tailwind
colors: {
  custom: {
    50: '#95c8f4',
    500: '#59b1ef',
    950: '#000000',
  },
}
SCSS
$custom: #59b1ef;
$custom-light: #95c8f4;
$custom-dark: #000000;
JSON
{
  "hex": "#59b1ef",
  "rgb": {
    "r": 89,
    "g": 177,
    "b": 239
  },
  "hsl": {
    "h": 204.8,
    "s": 82.418,
    "l": 64.314
  },
  "oklch": {
    "l": 0.73166,
    "c": 0.12376,
    "h": 241.9
  },
  "luminance": 0.398
}

Semantic roles & 50–950 ramp

primary
#59B1EF
secondary
#ECCDB8
accent
#6007DF
background
#F9FCFE
surface
#F2F8FD
border
#CCD1D5
text
#0E1317
muted
#7E8285

Preview Lab

Preview with #59B1EF

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

Preview Lab → · Contrast checker → · Palette generator →

#59B1EF Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva