#5B9BF4#5B9BF4

#5B9BF4 is a light, vivid cyan. Relative luminance 0.322; OKLCH L 68.7% C 0.148 H 257.0°. Best body text is #000000 at 7.44:1 contrast (WCAG AA passes).

Color values

HEX	#5B9BF4
RGB	rgb(91, 155, 244)
HSL	hsl(215, 87%, 66%)
HSV	hsv(215, 63%, 96%)
CMYK	cmyk(62.7%, 36.5%, 0%, 4.3%)
CIE-LAB	lab(63.50, 6.44, -50.68)
CIE-LCH	lch(63.50, 51.08, 277.24°)
OKLab	oklab(68.69% -0.0333 -0.1438)
OKLCH	oklch(68.69% 0.148 257)
XYZ	xyz(32.3590, 32.1954, 90.0794)
Luminance	0.3220 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B9BF4 #F4B45B

analogous

#5BE8F4 #5B9BF4 #675BF4

triadic

#5B9BF4 #F45B9B #9BF45B

tetradic

#5B9BF4 #F45BE8 #F4B45B #5BF467

square

#5B9BF4 #F45BE8 #F4B45B #5BF467

split-complementary

#5B9BF4 #F4675B #E8F45B

monochromatic

#0D5BC7 #2278F0 #5B9BF4 #94BEF8 #CEE1FC

Accessibility & contrast

On white

2.82

#5B9BF4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.44

#5B9BF4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5B9BF4

7.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B9BF4	#FFFFFF	#000000	##000000
##5B9BF4	1.00	2.82	7.44	7.44
#FFFFFF	2.82	1.00	21.00	21.00
#000000	7.44	21.00	1.00	1.00
##000000	7.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#74A2F8

Deuteranopia (green-blind)

#5F93F2

Tritanopia (blue-blind)

#00AFBC

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #5b9bf4;
/* rgb */ color: rgb(91, 155, 244);
/* oklch */ color: oklch(68.7% 0.148 257.0);

Tailwind

colors: {
  custom: {
    50: '#96b8f8',
    500: '#5b9bf4',
    950: '#000000',
  },
}

SCSS

$custom: #5b9bf4;
$custom-light: #96b8f8;
$custom-dark: #000000;

JSON

{
  "hex": "#5b9bf4",
  "rgb": {
    "r": 91,
    "g": 155,
    "b": 244
  },
  "hsl": {
    "h": 214.902,
    "s": 87.429,
    "l": 65.686
  },
  "oklch": {
    "l": 0.68692,
    "c": 0.14765,
    "h": 257
  },
  "luminance": 0.32198
}

Semantic roles & 50–950 ramp

primary

#5B9BF4

secondary

#EFDABC

accent

#8502E4

background

#F9FBFF

surface

#F2F6FF

border

#CCD0D7

text

#0F1117

muted

#7E8085

Preview Lab

Preview with #5B9BF4

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

Preview Lab → · Contrast checker → · Palette generator →