#5BB4E4#5BB4E4

#5BB4E4 is a light, moderate cyan. Relative luminance 0.405; OKLCH L 73.4% C 0.110 H 234.6°. Best body text is #000000 at 9.09:1 contrast (WCAG AA passes).

Color values

HEX	#5BB4E4
RGB	rgb(91, 180, 228)
HSL	hsl(201, 72%, 63%)
HSV	hsv(201, 60%, 89%)
CMYK	cmyk(60.1%, 21.1%, 0%, 10.6%)
CIE-LAB	lab(69.80, -12.70, -32.07)
CIE-LCH	lch(69.80, 34.49, 248.40°)
OKLab	oklab(73.41% -0.0637 -0.0897)
OKLCH	oklch(73.41% 0.11 234.6)
XYZ	xyz(34.6339, 40.4647, 79.3690)
Luminance	0.4047 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB4E4 #E48B5B

analogous

#5BE4D0 #5BB4E4 #5B6FE4

triadic

#5BB4E4 #E45BB4 #B4E45B

tetradic

#5BB4E4 #D05BE4 #E48B5B #6FE45B

square

#5BB4E4 #D05BE4 #E48B5B #6FE45B

split-complementary

#5BB4E4 #E45B6F #E4D05B

monochromatic

#1C77A9 #269CDB #5BB4E4 #90CCED #C4E4F5

Accessibility & contrast

On white

2.31

#5BB4E4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.09

#5BB4E4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB4E4

9.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB4E4	#FFFFFF	#000000	##000000
##5BB4E4	1.00	2.31	9.09	9.09
#FFFFFF	2.31	1.00	21.00	21.00
#000000	9.09	21.00	1.00	1.00
##000000	9.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9DB2E6

Deuteranopia (green-blind)

#8AA4E3

Tritanopia (blue-blind)

#00C1C4

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #5bb4e4;
/* rgb */ color: rgb(91, 180, 228);
/* oklch */ color: oklch(73.4% 0.110 234.6);

Tailwind

colors: {
  custom: {
    50: '#95caec',
    500: '#5bb4e4',
    950: '#000000',
  },
}

SCSS

$custom: #5bb4e4;
$custom-light: #95caec;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb4e4",
  "rgb": {
    "r": 91,
    "g": 180,
    "b": 228
  },
  "hsl": {
    "h": 201.022,
    "s": 71.728,
    "l": 62.549
  },
  "oklch": {
    "l": 0.73415,
    "c": 0.11005,
    "h": 234.6
  },
  "luminance": 0.40468
}

Semantic roles & 50–950 ramp

primary

#5BB4E4

secondary

#E6C6B4

accent

#5612D4

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #5BB4E4

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

Preview Lab → · Contrast checker → · Palette generator →