#5BB1E4#5BB1E4

#5BB1E4 is a light, moderate cyan. Relative luminance 0.393; OKLCH L 72.7% C 0.111 H 237.1°. Best body text is #000000 at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#5BB1E4
RGB	rgb(91, 177, 228)
HSL	hsl(202, 72%, 63%)
HSV	hsv(202, 60%, 89%)
CMYK	cmyk(60.1%, 22.4%, 0%, 10.6%)
CIE-LAB	lab(68.94, -11.08, -33.39)
CIE-LCH	lch(68.94, 35.18, 251.64°)
OKLab	oklab(72.74% -0.0606 -0.0935)
OKLCH	oklch(72.74% 0.111 237.1)
XYZ	xyz(34.0348, 39.2666, 79.1693)
Luminance	0.3927 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB1E4 #E48E5B

analogous

#5BE4D3 #5BB1E4 #5B6CE4

triadic

#5BB1E4 #E45BB1 #B1E45B

tetradic

#5BB1E4 #D35BE4 #E48E5B #6CE45B

square

#5BB1E4 #D35BE4 #E48E5B #6CE45B

split-complementary

#5BB1E4 #E45B6C #E4D35B

monochromatic

#1C74A9 #2698DB #5BB1E4 #90CAED #C4E3F5

Accessibility & contrast

On white

2.37

#5BB1E4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.85

#5BB1E4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB1E4

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB1E4	#FFFFFF	#000000	##000000
##5BB1E4	1.00	2.37	8.85	8.85
#FFFFFF	2.37	1.00	21.00	21.00
#000000	8.85	21.00	1.00	1.00
##000000	8.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#99B0E6

Deuteranopia (green-blind)

#86A2E3

Tritanopia (blue-blind)

#00BEC2

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #5bb1e4;
/* rgb */ color: rgb(91, 177, 228);
/* oklch */ color: oklch(72.7% 0.111 237.1);

Tailwind

colors: {
  custom: {
    50: '#95c8ec',
    500: '#5bb1e4',
    950: '#000000',
  },
}

SCSS

$custom: #5bb1e4;
$custom-light: #95c8ec;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb1e4",
  "rgb": {
    "r": 91,
    "g": 177,
    "b": 228
  },
  "hsl": {
    "h": 202.336,
    "s": 71.728,
    "l": 62.549
  },
  "oklch": {
    "l": 0.72735,
    "c": 0.11143,
    "h": 237.1
  },
  "luminance": 0.3927
}

Semantic roles & 50–950 ramp

primary

#5BB1E4

secondary

#E6C7B4

accent

#5A12D4

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #5BB1E4

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

Preview Lab → · Contrast checker → · Palette generator →