#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
RGB	rgb(89, 177, 239)
HSL	hsl(205, 82%, 64%)
HSV	hsv(205, 63%, 94%)
CMYK	cmyk(62.8%, 25.9%, 0%, 6.3%)
CIE-LAB	lab(69.32, -7.98, -38.80)
CIE-LCH	lch(69.32, 39.62, 258.38°)
OKLab	oklab(73.17% -0.0584 -0.1091)
OKLCH	oklch(73.17% 0.124 241.9)
XYZ	xyz(35.4161, 39.7966, 87.4597)
Luminance	0.3980 (WCAG relative)
Temperature	cool
Family	cyan

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
##59B1EF	1.00	2.34	8.96	8.96
#FFFFFF	2.34	1.00	21.00	21.00
#000000	8.96	21.00	1.00	1.00
##000000	8.96	21.00	1.00	1.00

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 →