#5B9EF4#5B9EF4

#5B9EF4 is a light, vivid cyan. Relative luminance 0.332; OKLCH L 69.3% C 0.145 H 255.5°. Best body text is #000000 at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#5B9EF4
RGB	rgb(91, 158, 244)
HSL	hsl(214, 87%, 66%)
HSV	hsv(214, 63%, 96%)
CMYK	cmyk(62.7%, 35.2%, 0%, 4.3%)
CIE-LAB	lab(64.33, 4.70, -49.37)
CIE-LCH	lch(64.33, 49.60, 275.44°)
OKLab	oklab(69.33% -0.0363 -0.14)
OKLCH	oklch(69.33% 0.145 255.5)
XYZ	xyz(32.8645, 33.2064, 90.2479)
Luminance	0.3321 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B9EF4 #F4B15B

analogous

#5BEBF4 #5B9EF4 #645BF4

triadic

#5B9EF4 #F45B9E #9EF45B

tetradic

#5B9EF4 #F45BEB #F4B15B #5BF464

square

#5B9EF4 #F45BEB #F4B15B #5BF464

split-complementary

#5B9EF4 #F4645B #EBF45B

monochromatic

#0D5FC7 #227CF0 #5B9EF4 #94C0F8 #CEE2FC

Accessibility & contrast

On white

2.75

#5B9EF4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.64

#5B9EF4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5B9EF4

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B9EF4	#FFFFFF	#000000	##000000
##5B9EF4	1.00	2.75	7.64	7.64
#FFFFFF	2.75	1.00	21.00	21.00
#000000	7.64	21.00	1.00	1.00
##000000	7.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#79A4F8

Deuteranopia (green-blind)

#6495F2

Tritanopia (blue-blind)

#00B2BD

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #5b9ef4;
/* rgb */ color: rgb(91, 158, 244);
/* oklch */ color: oklch(69.3% 0.145 255.5);

Tailwind

colors: {
  custom: {
    50: '#96baf8',
    500: '#5b9ef4',
    950: '#000000',
  },
}

SCSS

$custom: #5b9ef4;
$custom-light: #96baf8;
$custom-dark: #000000;

JSON

{
  "hex": "#5b9ef4",
  "rgb": {
    "r": 91,
    "g": 158,
    "b": 244
  },
  "hsl": {
    "h": 213.725,
    "s": 87.429,
    "l": 65.686
  },
  "oklch": {
    "l": 0.69334,
    "c": 0.14463,
    "h": 255.5
  },
  "luminance": 0.3321
}

Semantic roles & 50–950 ramp

primary

#5B9EF4

secondary

#EFD9BC

accent

#8102E4

background

#F9FBFF

surface

#F2F6FF

border

#CCD0D7

text

#0F1117

muted

#7E8085

Preview Lab

Preview with #5B9EF4

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

Preview Lab → · Contrast checker → · Palette generator →