#5BB1F3#5BB1F3

#5BB1F3 is a light, vivid cyan. Relative luminance 0.401; OKLCH L 73.4% C 0.127 H 244.0°. Best body text is #000000 at 9.03:1 contrast (WCAG AA passes).

Color values

HEX	#5BB1F3
RGB	rgb(91, 177, 243)
HSL	hsl(206, 86%, 65%)
HSV	hsv(206, 63%, 95%)
CMYK	cmyk(62.6%, 27.2%, 0%, 4.7%)
CIE-LAB	lab(69.57, -6.36, -40.60)
CIE-LCH	lch(69.57, 41.09, 261.10°)
OKLab	oklab(73.43% -0.0558 -0.1143)
OKLCH	oklch(73.43% 0.127 244)
XYZ	xyz(36.2081, 40.1359, 90.6155)
Luminance	0.4014 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB1F3 #F39D5B

analogous

#5BF3E9 #5BB1F3 #5B65F3

triadic

#5BB1F3 #F35BB1 #B1F35B

tetradic

#5BB1F3 #E95BF3 #F39D5B #65F35B

square

#5BB1F3 #E95BF3 #F39D5B #65F35B

split-complementary

#5BB1F3 #F35B65 #F3E95B

monochromatic

#0E76C5 #2296EF #5BB1F3 #94CCF7 #CDE7FB

Accessibility & contrast

On white

2.33

#5BB1F3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.03

#5BB1F3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB1F3

9.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB1F3	#FFFFFF	#000000	##000000
##5BB1F3	1.00	2.33	9.03	9.03
#FFFFFF	2.33	1.00	21.00	21.00
#000000	9.03	21.00	1.00	1.00
##000000	9.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#94B2F6

Deuteranopia (green-blind)

#7FA3F2

Tritanopia (blue-blind)

#00C1C8

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #5bb1f3;
/* rgb */ color: rgb(91, 177, 243);
/* oklch */ color: oklch(73.4% 0.127 244.0);

Tailwind

colors: {
  custom: {
    50: '#96c8f7',
    500: '#5bb1f3',
    950: '#000000',
  },
}

SCSS

$custom: #5bb1f3;
$custom-light: #96c8f7;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb1f3",
  "rgb": {
    "r": 91,
    "g": 177,
    "b": 243
  },
  "hsl": {
    "h": 206.053,
    "s": 86.364,
    "l": 65.49
  },
  "oklch": {
    "l": 0.73433,
    "c": 0.12718,
    "h": 244
  },
  "luminance": 0.40139
}

Semantic roles & 50–950 ramp

primary

#5BB1F3

secondary

#EED2BB

accent

#6403E3

background

#F9FCFF

surface

#F2F8FE

border

#CCD1D6

text

#0F1317

muted

#7E8285

Preview Lab

Preview with #5BB1F3

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

Preview Lab → · Contrast checker → · Palette generator →