#5BB9E8#5BB9E8

#5BB9E8 is a light, moderate cyan. Relative luminance 0.427; OKLCH L 74.7% C 0.112 H 232.7°. Best body text is #000000 at 9.55:1 contrast (WCAG AA passes).

Color values

HEX	#5BB9E8
RGB	rgb(91, 185, 232)
HSL	hsl(200, 75%, 63%)
HSV	hsv(200, 61%, 91%)
CMYK	cmyk(60.8%, 20.3%, 0%, 9%)
CIE-LAB	lab(71.38, -14.13, -31.80)
CIE-LCH	lch(71.38, 34.80, 246.04°)
OKLab	oklab(74.72% -0.0676 -0.0889)
OKLCH	oklch(74.72% 0.112 232.7)
XYZ	xyz(36.2232, 42.7447, 82.6699)
Luminance	0.4275 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB9E8 #E88A5B

analogous

#5BE8D0 #5BB9E8 #5B72E8

triadic

#5BB9E8 #E85BB9 #B9E85B

tetradic

#5BB9E8 #D05BE8 #E88A5B #72E85B

square

#5BB9E8 #D05BE8 #E88A5B #72E85B

split-complementary

#5BB9E8 #E85B72 #E8D05B

monochromatic

#197EB0 #25A2E0 #5BB9E8 #91D0F0 #C6E7F7

Accessibility & contrast

On white

2.20

#5BB9E8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.55

#5BB9E8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB9E8

9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB9E8	#FFFFFF	#000000	##000000
##5BB9E8	1.00	2.20	9.55	9.55
#FFFFFF	2.20	1.00	21.00	21.00
#000000	9.55	21.00	1.00	1.00
##000000	9.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A2B7EA

Deuteranopia (green-blind)

#8EA8E7

Tritanopia (blue-blind)

#00C6C9

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #5bb9e8;
/* rgb */ color: rgb(91, 185, 232);
/* oklch */ color: oklch(74.7% 0.112 232.7);

Tailwind

colors: {
  custom: {
    50: '#95ceef',
    500: '#5bb9e8',
    950: '#000000',
  },
}

SCSS

$custom: #5bb9e8;
$custom-light: #95ceef;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb9e8",
  "rgb": {
    "r": 91,
    "g": 185,
    "b": 232
  },
  "hsl": {
    "h": 200,
    "s": 75.401,
    "l": 63.333
  },
  "oklch": {
    "l": 0.74724,
    "c": 0.11171,
    "h": 232.7
  },
  "luminance": 0.42748
}

Semantic roles & 50–950 ramp

primary

#5BB9E8

secondary

#E9C7B6

accent

#510ED8

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #5BB9E8

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

Preview Lab → · Contrast checker → · Palette generator →