#5BB5E9#5BB5E9

#5BB5E9 is a light, moderate cyan. Relative luminance 0.412; OKLCH L 73.9% C 0.114 H 236.5°. Best body text is #000000 at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#5BB5E9
RGB	rgb(91, 181, 233)
HSL	hsl(202, 76%, 64%)
HSV	hsv(202, 61%, 91%)
CMYK	cmyk(60.9%, 22.3%, 0%, 8.6%)
CIE-LAB	lab(70.28, -11.69, -34.04)
CIE-LCH	lch(70.28, 35.99, 251.05°)
OKLab	oklab(73.86% -0.0631 -0.0954)
OKLCH	oklch(73.86% 0.114 236.5)
XYZ	xyz(35.5406, 41.1516, 83.1451)
Luminance	0.4116 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB5E9 #E98F5B

analogous

#5BE9D6 #5BB5E9 #5B6EE9

triadic

#5BB5E9 #E95BB5 #B5E95B

tetradic

#5BB5E9 #D65BE9 #E98F5B #6EE95B

square

#5BB5E9 #D65BE9 #E98F5B #6EE95B

split-complementary

#5BB5E9 #E95B6E #E9D65B

monochromatic

#1879B2 #259DE2 #5BB5E9 #91CDF0 #C7E6F7

Accessibility & contrast

On white

2.27

#5BB5E9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.23

#5BB5E9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB5E9

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB5E9	#FFFFFF	#000000	##000000
##5BB5E9	1.00	2.27	9.23	9.23
#FFFFFF	2.27	1.00	21.00	21.00
#000000	9.23	21.00	1.00	1.00
##000000	9.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9DB4EB

Deuteranopia (green-blind)

#89A5E8

Tritanopia (blue-blind)

#00C2C6

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #5bb5e9;
/* rgb */ color: rgb(91, 181, 233);
/* oklch */ color: oklch(73.9% 0.114 236.5);

Tailwind

colors: {
  custom: {
    50: '#95cbf0',
    500: '#5bb5e9',
    950: '#000000',
  },
}

SCSS

$custom: #5bb5e9;
$custom-light: #95cbf0;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb5e9",
  "rgb": {
    "r": 91,
    "g": 181,
    "b": 233
  },
  "hsl": {
    "h": 201.972,
    "s": 76.344,
    "l": 63.529
  },
  "oklch": {
    "l": 0.73863,
    "c": 0.11436,
    "h": 236.5
  },
  "luminance": 0.41155
}

Semantic roles & 50–950 ramp

primary

#5BB5E9

secondary

#E9C9B7

accent

#580DD9

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #5BB5E9

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

Preview Lab → · Contrast checker → · Palette generator →