#5BBBE7#5BBBE7

#5BBBE7 is a light, moderate cyan. Relative luminance 0.435; OKLCH L 75.1% C 0.110 H 230.5°. Best body text is #000000 at 9.71:1 contrast (WCAG AA passes).

Color values

HEX	#5BBBE7
RGB	rgb(91, 187, 231)
HSL	hsl(199, 74%, 63%)
HSV	hsv(199, 61%, 91%)
CMYK	cmyk(60.6%, 19%, 0%, 9.4%)
CIE-LAB	lab(71.91, -15.50, -30.43)
CIE-LCH	lch(71.91, 34.15, 243.01°)
OKLab	oklab(75.13% -0.0701 -0.085)
OKLCH	oklch(75.13% 0.11 230.5)
XYZ	xyz(36.5029, 43.5307, 82.0644)
Luminance	0.4353 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BBBE7 #E7875B

analogous

#5BE7CD #5BBBE7 #5B75E7

triadic

#5BBBE7 #E75BBB #BBE75B

tetradic

#5BBBE7 #CD5BE7 #E7875B #75E75B

square

#5BBBE7 #CD5BE7 #E7875B #75E75B

split-complementary

#5BBBE7 #E75B75 #E7CD5B

monochromatic

#197FAE #26A5DF #5BBBE7 #90D1EF #C6E7F7

Accessibility & contrast

On white

2.16

#5BBBE7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.71

#5BBBE7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BBBE7

9.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BBBE7	#FFFFFF	#000000	##000000
##5BBBE7	1.00	2.16	9.71	9.71
#FFFFFF	2.16	1.00	21.00	21.00
#000000	9.71	21.00	1.00	1.00
##000000	9.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A5B8E9

Deuteranopia (green-blind)

#91AAE6

Tritanopia (blue-blind)

#00C7C9

Achromatopsia (no color)

#B0B0B0

Design tokens & code

CSS

--color: #5bbbe7;
/* rgb */ color: rgb(91, 187, 231);
/* oklch */ color: oklch(75.1% 0.110 230.5);

Tailwind

colors: {
  custom: {
    50: '#95cfee',
    500: '#5bbbe7',
    950: '#000000',
  },
}

SCSS

$custom: #5bbbe7;
$custom-light: #95cfee;
$custom-dark: #000000;

JSON

{
  "hex": "#5bbbe7",
  "rgb": {
    "r": 91,
    "g": 187,
    "b": 231
  },
  "hsl": {
    "h": 198.857,
    "s": 74.468,
    "l": 63.137
  },
  "oklch": {
    "l": 0.75135,
    "c": 0.11016,
    "h": 230.5
  },
  "luminance": 0.43534
}

Semantic roles & 50–950 ramp

primary

#5BBBE7

secondary

#E8C6B6

accent

#4E0FD7

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #5BBBE7

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

Preview Lab → · Contrast checker → · Palette generator →