#5BBBE4#5BBBE4

#5BBBE4 is a light, moderate cyan. Relative luminance 0.434; OKLCH L 75.0% C 0.108 H 228.7°. Best body text is #000000 at 9.67:1 contrast (WCAG AA passes).

Color values

HEX	#5BBBE4
RGB	rgb(91, 187, 228)
HSL	hsl(198, 72%, 63%)
HSV	hsv(198, 60%, 89%)
CMYK	cmyk(60.1%, 18%, 0%, 10.6%)
CIE-LAB	lab(71.80, -16.41, -28.98)
CIE-LCH	lch(71.80, 33.30, 240.48°)
OKLab	oklab(75.01% -0.0711 -0.0809)
OKLCH	oklch(75.01% 0.108 228.7)
XYZ	xyz(36.0829, 43.3627, 79.8520)
Luminance	0.4337 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BBBE4 #E4845B

analogous

#5BE4C8 #5BBBE4 #5B77E4

triadic

#5BBBE4 #E45BBB #BBE45B

tetradic

#5BBBE4 #C85BE4 #E4845B #77E45B

square

#5BBBE4 #C85BE4 #E4845B #77E45B

split-complementary

#5BBBE4 #E45B77 #E4C85B

monochromatic

#1C7FA9 #26A5DB #5BBBE4 #90D1ED #C4E7F5

Accessibility & contrast

On white

2.17

#5BBBE4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.67

#5BBBE4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BBBE4

9.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BBBE4	#FFFFFF	#000000	##000000
##5BBBE4	1.00	2.17	9.67	9.67
#FFFFFF	2.17	1.00	21.00	21.00
#000000	9.67	21.00	1.00	1.00
##000000	9.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A6B8E6

Deuteranopia (green-blind)

#92AAE3

Tritanopia (blue-blind)

#00C7C8

Achromatopsia (no color)

#B0B0B0

Design tokens & code

CSS

--color: #5bbbe4;
/* rgb */ color: rgb(91, 187, 228);
/* oklch */ color: oklch(75.0% 0.108 228.7);

Tailwind

colors: {
  custom: {
    50: '#95cfec',
    500: '#5bbbe4',
    950: '#000000',
  },
}

SCSS

$custom: #5bbbe4;
$custom-light: #95cfec;
$custom-dark: #000000;

JSON

{
  "hex": "#5bbbe4",
  "rgb": {
    "r": 91,
    "g": 187,
    "b": 228
  },
  "hsl": {
    "h": 197.956,
    "s": 71.728,
    "l": 62.549
  },
  "oklch": {
    "l": 0.75007,
    "c": 0.10769,
    "h": 228.7
  },
  "luminance": 0.43366
}

Semantic roles & 50–950 ramp

primary

#5BBBE4

secondary

#E6C3B4

accent

#4C12D4

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #5BBBE4

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

Preview Lab → · Contrast checker → · Palette generator →