#5BB1ED#5BB1ED

#5BB1ED is a light, vivid cyan. Relative luminance 0.398; OKLCH L 73.1% C 0.121 H 241.5°. Best body text is #000000 at 8.96:1 contrast (WCAG AA passes).

Color values

HEX	#5BB1ED
RGB	rgb(91, 177, 237)
HSL	hsl(205, 80%, 64%)
HSV	hsv(205, 62%, 93%)
CMYK	cmyk(61.6%, 25.3%, 0%, 7.1%)
CIE-LAB	lab(69.31, -8.26, -37.73)
CIE-LCH	lch(69.31, 38.62, 257.64°)
OKLab	oklab(73.15% -0.0576 -0.106)
OKLCH	oklch(73.15% 0.121 241.5)
XYZ	xyz(35.3168, 39.7794, 85.9213)
Luminance	0.3978 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB1ED #ED975B

analogous

#5BEDE0 #5BB1ED #5B68ED

triadic

#5BB1ED #ED5BB1 #B1ED5B

tetradic

#5BB1ED #E05BED #ED975B #68ED5B

square

#5BB1ED #E05BED #ED975B #68ED5B

split-complementary

#5BB1ED #ED5B68 #EDE05B

monochromatic

#1475B9 #2497E7 #5BB1ED #92CBF3 #C9E5F9

Accessibility & contrast

On white

2.34

#5BB1ED on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.96

#5BB1ED on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB1ED

8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB1ED	#FFFFFF	#000000	##000000
##5BB1ED	1.00	2.34	8.96	8.96
#FFFFFF	2.34	1.00	21.00	21.00
#000000	8.96	21.00	1.00	1.00
##000000	8.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#96B1F0

Deuteranopia (green-blind)

#82A3EC

Tritanopia (blue-blind)

#00C0C6

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #5bb1ed;
/* rgb */ color: rgb(91, 177, 237);
/* oklch */ color: oklch(73.1% 0.121 241.5);

Tailwind

colors: {
  custom: {
    50: '#96c8f3',
    500: '#5bb1ed',
    950: '#000000',
  },
}

SCSS

$custom: #5bb1ed;
$custom-light: #96c8f3;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb1ed",
  "rgb": {
    "r": 91,
    "g": 177,
    "b": 237
  },
  "hsl": {
    "h": 204.658,
    "s": 80.22,
    "l": 64.314
  },
  "oklch": {
    "l": 0.73149,
    "c": 0.12067,
    "h": 241.5
  },
  "luminance": 0.39783
}

Semantic roles & 50–950 ramp

primary

#5BB1ED

secondary

#EBCDB9

accent

#6009DD

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1317

muted

#7E8285

Preview Lab

Preview with #5BB1ED

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

Preview Lab → · Contrast checker → · Palette generator →