#5BB5EB#5BB5EB

#5BB5EB is a light, moderate cyan. Relative luminance 0.413; OKLCH L 74.0% C 0.116 H 237.5°. Best body text is #000000 at 9.25:1 contrast (WCAG AA passes).

Color values

HEX	#5BB5EB
RGB	rgb(91, 181, 235)
HSL	hsl(203, 78%, 64%)
HSV	hsv(203, 61%, 92%)
CMYK	cmyk(61.3%, 23%, 0%, 7.8%)
CIE-LAB	lab(70.36, -11.06, -35.01)
CIE-LCH	lch(70.36, 36.71, 252.46°)
OKLab	oklab(73.95% -0.0624 -0.0981)
OKLCH	oklch(73.95% 0.116 237.5)
XYZ	xyz(35.8279, 41.2665, 84.6583)
Luminance	0.4127 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB5EB #EB915B

analogous

#5BEBD9 #5BB5EB #5B6DEB

triadic

#5BB5EB #EB5BB5 #B5EB5B

tetradic

#5BB5EB #D95BEB #EB915B #6DEB5B

square

#5BB5EB #D95BEB #EB915B #6DEB5B

split-complementary

#5BB5EB #EB5B6D #EBD95B

monochromatic

#167AB5 #249CE4 #5BB5EB #92CEF2 #C8E6F8

Accessibility & contrast

On white

2.27

#5BB5EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.25

#5BB5EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB5EB

9.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB5EB	#FFFFFF	#000000	##000000
##5BB5EB	1.00	2.27	9.25	9.25
#FFFFFF	2.27	1.00	21.00	21.00
#000000	9.25	21.00	1.00	1.00
##000000	9.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9CB4EE

Deuteranopia (green-blind)

#88A6EA

Tritanopia (blue-blind)

#00C3C7

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #5bb5eb;
/* rgb */ color: rgb(91, 181, 235);
/* oklch */ color: oklch(74.0% 0.116 237.5);

Tailwind

colors: {
  custom: {
    50: '#96cbf1',
    500: '#5bb5eb',
    950: '#000000',
  },
}

SCSS

$custom: #5bb5eb;
$custom-light: #96cbf1;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb5eb",
  "rgb": {
    "r": 91,
    "g": 181,
    "b": 235
  },
  "hsl": {
    "h": 202.5,
    "s": 78.261,
    "l": 63.922
  },
  "oklch": {
    "l": 0.73954,
    "c": 0.11632,
    "h": 237.5
  },
  "luminance": 0.4127
}

Semantic roles & 50–950 ramp

primary

#5BB5EB

secondary

#EACBB8

accent

#590BDB

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #5BB5EB

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

Preview Lab → · Contrast checker → · Palette generator →