#5BB5EC#5BB5EC

#5BB5EC is a light, moderate cyan. Relative luminance 0.413; OKLCH L 74.0% C 0.117 H 238.0°. Best body text is #000000 at 9.27:1 contrast (WCAG AA passes).

Color values

HEX	#5BB5EC
RGB	rgb(91, 181, 236)
HSL	hsl(203, 79%, 64%)
HSV	hsv(203, 61%, 93%)
CMYK	cmyk(61.4%, 23.3%, 0%, 7.5%)
CIE-LAB	lab(70.40, -10.75, -35.49)
CIE-LCH	lch(70.40, 37.08, 253.14°)
OKLab	oklab(74% -0.0621 -0.0995)
OKLCH	oklch(74% 0.117 238)
XYZ	xyz(35.9728, 41.3245, 85.4213)
Luminance	0.4133 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB5EC #EC925B

analogous

#5BECDB #5BB5EC #5B6DEC

triadic

#5BB5EC #EC5BB5 #B5EC5B

tetradic

#5BB5EC #DB5BEC #EC925B #6DEC5B

square

#5BB5EC #DB5BEC #EC925B #6DEC5B

split-complementary

#5BB5EC #EC5B6D #ECDB5B

monochromatic

#157AB7 #249CE6 #5BB5EC #92CEF2 #C9E6F9

Accessibility & contrast

On white

2.27

#5BB5EC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.27

#5BB5EC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB5EC

9.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB5EC	#FFFFFF	#000000	##000000
##5BB5EC	1.00	2.27	9.27	9.27
#FFFFFF	2.27	1.00	21.00	21.00
#000000	9.27	21.00	1.00	1.00
##000000	9.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9CB4EF

Deuteranopia (green-blind)

#88A6EB

Tritanopia (blue-blind)

#00C3C8

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #5bb5ec;
/* rgb */ color: rgb(91, 181, 236);
/* oklch */ color: oklch(74.0% 0.117 238.0);

Tailwind

colors: {
  custom: {
    50: '#96cbf2',
    500: '#5bb5ec',
    950: '#000000',
  },
}

SCSS

$custom: #5bb5ec;
$custom-light: #96cbf2;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb5ec",
  "rgb": {
    "r": 91,
    "g": 181,
    "b": 236
  },
  "hsl": {
    "h": 202.759,
    "s": 79.235,
    "l": 64.118
  },
  "oklch": {
    "l": 0.73999,
    "c": 0.11731,
    "h": 238
  },
  "luminance": 0.41328
}

Semantic roles & 50–950 ramp

primary

#5BB5EC

secondary

#EBCBB8

accent

#590ADC

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1317

muted

#7E8285

Preview Lab

Preview with #5BB5EC

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

Preview Lab → · Contrast checker → · Palette generator →