#5BB1EA#5BB1EA

#5BB1EA is a light, moderate cyan. Relative luminance 0.396; OKLCH L 73.0% C 0.117 H 240.1°. Best body text is #000000 at 8.92:1 contrast (WCAG AA passes).

Color values

HEX	#5BB1EA
RGB	rgb(91, 177, 234)
HSL	hsl(204, 77%, 64%)
HSV	hsv(204, 61%, 92%)
CMYK	cmyk(61.1%, 24.4%, 0%, 8.2%)
CIE-LAB	lab(69.19, -9.21, -36.29)
CIE-LCH	lch(69.19, 37.44, 255.76°)
OKLab	oklab(73.01% -0.0586 -0.1018)
OKLCH	oklch(73.01% 0.118 240.1)
XYZ	xyz(34.8822, 39.6055, 83.6323)
Luminance	0.3961 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB1EA #EA945B

analogous

#5BEADB #5BB1EA #5B69EA

triadic

#5BB1EA #EA5BB1 #B1EA5B

tetradic

#5BB1EA #DB5BEA #EA945B #69EA5B

square

#5BB1EA #DB5BEA #EA945B #69EA5B

split-complementary

#5BB1EA #EA5B69 #EADB5B

monochromatic

#1775B4 #2597E3 #5BB1EA #91CBF1 #C8E5F8

Accessibility & contrast

On white

2.35

#5BB1EA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.92

#5BB1EA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB1EA

8.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB1EA	#FFFFFF	#000000	##000000
##5BB1EA	1.00	2.35	8.92	8.92
#FFFFFF	2.35	1.00	21.00	21.00
#000000	8.92	21.00	1.00	1.00
##000000	8.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#97B1ED

Deuteranopia (green-blind)

#84A3E9

Tritanopia (blue-blind)

#00BFC4

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #5bb1ea;
/* rgb */ color: rgb(91, 177, 234);
/* oklch */ color: oklch(73.0% 0.117 240.1);

Tailwind

colors: {
  custom: {
    50: '#95c8f1',
    500: '#5bb1ea',
    950: '#000000',
  },
}

SCSS

$custom: #5bb1ea;
$custom-light: #95c8f1;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb1ea",
  "rgb": {
    "r": 91,
    "g": 177,
    "b": 234
  },
  "hsl": {
    "h": 203.916,
    "s": 77.297,
    "l": 63.725
  },
  "oklch": {
    "l": 0.73009,
    "c": 0.1175,
    "h": 240.1
  },
  "luminance": 0.39609
}

Semantic roles & 50–950 ramp

primary

#5BB1EA

secondary

#EACBB7

accent

#5E0CDA

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #5BB1EA

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

Preview Lab → · Contrast checker → · Palette generator →