#5B9CF4#5B9CF4

#5B9CF4 is a light, vivid cyan. Relative luminance 0.325; OKLCH L 68.9% C 0.147 H 256.5°. Best body text is #000000 at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#5B9CF4
RGB	rgb(91, 156, 244)
HSL	hsl(215, 87%, 66%)
HSV	hsv(215, 63%, 96%)
CMYK	cmyk(62.7%, 36.1%, 0%, 4.3%)
CIE-LAB	lab(63.78, 5.86, -50.24)
CIE-LCH	lch(63.78, 50.58, 276.65°)
OKLab	oklab(68.91% -0.0343 -0.1426)
OKLCH	oklch(68.91% 0.147 256.5)
XYZ	xyz(32.5261, 32.5296, 90.1351)
Luminance	0.3253 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B9CF4 #F4B35B

analogous

#5BE8F4 #5B9CF4 #665BF4

triadic

#5B9CF4 #F45B9C #9CF45B

tetradic

#5B9CF4 #F45BE8 #F4B35B #5BF466

square

#5B9CF4 #F45BE8 #F4B35B #5BF466

split-complementary

#5B9CF4 #F4665B #E8F45B

monochromatic

#0D5CC7 #2279F0 #5B9CF4 #94BFF8 #CEE1FC

Accessibility & contrast

On white

2.80

#5B9CF4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.51

#5B9CF4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5B9CF4

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B9CF4	#FFFFFF	#000000	##000000
##5B9CF4	1.00	2.80	7.51	7.51
#FFFFFF	2.80	1.00	21.00	21.00
#000000	7.51	21.00	1.00	1.00
##000000	7.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#76A2F8

Deuteranopia (green-blind)

#6194F2

Tritanopia (blue-blind)

#00B0BC

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #5b9cf4;
/* rgb */ color: rgb(91, 156, 244);
/* oklch */ color: oklch(68.9% 0.147 256.5);

Tailwind

colors: {
  custom: {
    50: '#96b8f8',
    500: '#5b9cf4',
    950: '#000000',
  },
}

SCSS

$custom: #5b9cf4;
$custom-light: #96b8f8;
$custom-dark: #000000;

JSON

{
  "hex": "#5b9cf4",
  "rgb": {
    "r": 91,
    "g": 156,
    "b": 244
  },
  "hsl": {
    "h": 214.51,
    "s": 87.429,
    "l": 65.686
  },
  "oklch": {
    "l": 0.68906,
    "c": 0.14663,
    "h": 256.5
  },
  "luminance": 0.32533
}

Semantic roles & 50–950 ramp

primary

#5B9CF4

secondary

#EFD9BC

accent

#8402E4

background

#F9FBFF

surface

#F2F6FF

border

#CCD0D7

text

#0F1117

muted

#7E8085

Preview Lab

Preview with #5B9CF4

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

Preview Lab → · Contrast checker → · Palette generator →