#59B1EB#59B1EB

#59B1EB is a light, moderate cyan. Relative luminance 0.396; OKLCH L 73.0% C 0.120 H 240.1°. Best body text is #000000 at 8.91:1 contrast (WCAG AA passes).

Color values

HEX	#59B1EB
RGB	rgb(89, 177, 235)
HSL	hsl(204, 78%, 64%)
HSV	hsv(204, 62%, 92%)
CMYK	cmyk(62.1%, 24.7%, 0%, 7.8%)
CIE-LAB	lab(69.16, -9.25, -36.88)
CIE-LCH	lch(69.16, 38.03, 255.92°)
OKLab	oklab(72.98% -0.0596 -0.1036)
OKLCH	oklch(72.98% 0.12 240.1)
XYZ	xyz(34.8317, 39.5628, 84.3819)
Luminance	0.3957 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#59B1EB #EB9359

analogous

#59EBDC #59B1EB #5968EB

triadic

#59B1EB #EB59B1 #B1EB59

tetradic

#59B1EB #DC59EB #EB9359 #68EB59

square

#59B1EB #DC59EB #EB9359 #68EB59

split-complementary

#59B1EB #EB5968 #EBDC59

monochromatic

#1675B4 #2297E4 #59B1EB #90CBF2 #C6E4F8

Accessibility & contrast

On white

2.36

#59B1EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.91

#59B1EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #59B1EB

8.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##59B1EB	#FFFFFF	#000000	##000000
##59B1EB	1.00	2.36	8.91	8.91
#FFFFFF	2.36	1.00	21.00	21.00
#000000	8.91	21.00	1.00	1.00
##000000	8.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#97B1EE

Deuteranopia (green-blind)

#83A2EA

Tritanopia (blue-blind)

#00BFC5

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #59b1eb;
/* rgb */ color: rgb(89, 177, 235);
/* oklch */ color: oklch(73.0% 0.120 240.1);

Tailwind

colors: {
  custom: {
    50: '#95c8f1',
    500: '#59b1eb',
    950: '#000000',
  },
}

SCSS

$custom: #59b1eb;
$custom-light: #95c8f1;
$custom-dark: #000000;

JSON

{
  "hex": "#59b1eb",
  "rgb": {
    "r": 89,
    "g": 177,
    "b": 235
  },
  "hsl": {
    "h": 203.836,
    "s": 78.495,
    "l": 63.529
  },
  "oklch": {
    "l": 0.72978,
    "c": 0.11954,
    "h": 240.1
  },
  "luminance": 0.39566
}

Semantic roles & 50–950 ramp

primary

#59B1EB

secondary

#EACBB6

accent

#5D0BDB

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1317

muted

#7E8285

Preview Lab

Preview with #59B1EB

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

Preview Lab → · Contrast checker → · Palette generator →