#5BBBE8#5BBBE8

#5BBBE8 is a light, moderate cyan. Relative luminance 0.436; OKLCH L 75.2% C 0.111 H 231.1°. Best body text is #000000 at 9.72:1 contrast (WCAG AA passes).

Color values

HEX	#5BBBE8
RGB	rgb(91, 187, 232)
HSL	hsl(199, 75%, 63%)
HSV	hsv(199, 61%, 91%)
CMYK	cmyk(60.8%, 19.4%, 0%, 9%)
CIE-LAB	lab(71.95, -15.19, -30.92)
CIE-LCH	lch(71.95, 34.45, 243.83°)
OKLab	oklab(75.18% -0.0697 -0.0864)
OKLCH	oklch(75.18% 0.111 231.1)
XYZ	xyz(36.6446, 43.5874, 82.8103)
Luminance	0.4359 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BBBE8 #E8885B

analogous

#5BE8CE #5BBBE8 #5B74E8

triadic

#5BBBE8 #E85BBB #BBE85B

tetradic

#5BBBE8 #CE5BE8 #E8885B #74E85B

square

#5BBBE8 #CE5BE8 #E8885B #74E85B

split-complementary

#5BBBE8 #E85B74 #E8CE5B

monochromatic

#1980B0 #25A5E0 #5BBBE8 #91D1F0 #C6E8F7

Accessibility & contrast

On white

2.16

#5BBBE8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.72

#5BBBE8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BBBE8

9.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BBBE8	#FFFFFF	#000000	##000000
##5BBBE8	1.00	2.16	9.72	9.72
#FFFFFF	2.16	1.00	21.00	21.00
#000000	9.72	21.00	1.00	1.00
##000000	9.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A4B9EA

Deuteranopia (green-blind)

#91AAE7

Tritanopia (blue-blind)

#00C7CA

Achromatopsia (no color)

#B0B0B0

Design tokens & code

CSS

--color: #5bbbe8;
/* rgb */ color: rgb(91, 187, 232);
/* oklch */ color: oklch(75.2% 0.111 231.1);

Tailwind

colors: {
  custom: {
    50: '#96cfef',
    500: '#5bbbe8',
    950: '#000000',
  },
}

SCSS

$custom: #5bbbe8;
$custom-light: #96cfef;
$custom-dark: #000000;

JSON

{
  "hex": "#5bbbe8",
  "rgb": {
    "r": 91,
    "g": 187,
    "b": 232
  },
  "hsl": {
    "h": 199.149,
    "s": 75.401,
    "l": 63.333
  },
  "oklch": {
    "l": 0.75178,
    "c": 0.11102,
    "h": 231.1
  },
  "luminance": 0.43591
}

Semantic roles & 50–950 ramp

primary

#5BBBE8

secondary

#E9C6B6

accent

#4E0ED8

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #5BBBE8

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

Preview Lab → · Contrast checker → · Palette generator →