#5BB8F3#5BB8F3

#5BB8F3 is a light, vivid cyan. Relative luminance 0.430; OKLCH L 75.0% C 0.123 H 239.2°. Best body text is #000000 at 9.60:1 contrast (WCAG AA passes).

Color values

HEX	#5BB8F3
RGB	rgb(91, 184, 243)
HSL	hsl(203, 86%, 65%)
HSV	hsv(203, 63%, 95%)
CMYK	cmyk(62.6%, 24.3%, 0%, 4.7%)
CIE-LAB	lab(71.54, -10.18, -37.53)
CIE-LCH	lch(71.54, 38.88, 254.82°)
OKLab	oklab(74.99% -0.0629 -0.1054)
OKLCH	oklch(74.99% 0.123 239.2)
XYZ	xyz(37.6264, 42.9724, 91.0882)
Luminance	0.4298 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB8F3 #F3965B

analogous

#5BF3E2 #5BB8F3 #5B6CF3

triadic

#5BB8F3 #F35BB8 #B8F35B

tetradic

#5BB8F3 #E25BF3 #F3965B #6CF35B

square

#5BB8F3 #E25BF3 #F3965B #6CF35B

split-complementary

#5BB8F3 #F35B6C #F3E25B

monochromatic

#0E7EC5 #229FEF #5BB8F3 #94D1F7 #CDE9FB

Accessibility & contrast

On white

2.19

#5BB8F3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.60

#5BB8F3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB8F3

9.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB8F3	#FFFFFF	#000000	##000000
##5BB8F3	1.00	2.19	9.60	9.60
#FFFFFF	2.19	1.00	21.00	21.00
#000000	9.60	21.00	1.00	1.00
##000000	9.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9DB8F6

Deuteranopia (green-blind)

#88A8F2

Tritanopia (blue-blind)

#00C7CC

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #5bb8f3;
/* rgb */ color: rgb(91, 184, 243);
/* oklch */ color: oklch(75.0% 0.123 239.2);

Tailwind

colors: {
  custom: {
    50: '#97cdf7',
    500: '#5bb8f3',
    950: '#000000',
  },
}

SCSS

$custom: #5bb8f3;
$custom-light: #97cdf7;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb8f3",
  "rgb": {
    "r": 91,
    "g": 184,
    "b": 243
  },
  "hsl": {
    "h": 203.289,
    "s": 86.364,
    "l": 65.49
  },
  "oklch": {
    "l": 0.74992,
    "c": 0.12273,
    "h": 239.2
  },
  "luminance": 0.42976
}

Semantic roles & 50–950 ramp

primary

#5BB8F3

secondary

#EECFBB

accent

#5A03E3

background

#F9FCFF

surface

#F2F8FE

border

#CCD1D6

text

#0F1317

muted

#7E8285

Preview Lab

Preview with #5BB8F3

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

Preview Lab → · Contrast checker → · Palette generator →