#5BB5EE#5BB5EE

#5BB5EE is a light, moderate cyan. Relative luminance 0.414; OKLCH L 74.1% C 0.119 H 239.0°. Best body text is #000000 at 9.29:1 contrast (WCAG AA passes).

Color values

HEX	#5BB5EE
RGB	rgb(91, 181, 238)
HSL	hsl(203, 81%, 65%)
HSV	hsv(203, 62%, 93%)
CMYK	cmyk(61.8%, 23.9%, 0%, 6.7%)
CIE-LAB	lab(70.48, -10.13, -36.45)
CIE-LCH	lch(70.48, 37.83, 254.47°)
OKLab	oklab(74.09% -0.0614 -0.1023)
OKLCH	oklch(74.09% 0.119 239)
XYZ	xyz(36.2650, 41.4414, 86.9602)
Luminance	0.4144 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB5EE #EE945B

analogous

#5BEEDD #5BB5EE #5B6CEE

triadic

#5BB5EE #EE5BB5 #B5EE5B

tetradic

#5BB5EE #DD5BEE #EE945B #6CEE5B

square

#5BB5EE #DD5BEE #EE945B #6CEE5B

split-complementary

#5BB5EE #EE5B6C #EEDD5B

monochromatic

#137ABB #249CE8 #5BB5EE #92CEF4 #CAE7F9

Accessibility & contrast

On white

2.26

#5BB5EE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.29

#5BB5EE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB5EE

9.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB5EE	#FFFFFF	#000000	##000000
##5BB5EE	1.00	2.26	9.29	9.29
#FFFFFF	2.26	1.00	21.00	21.00
#000000	9.29	21.00	1.00	1.00
##000000	9.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9BB5F1

Deuteranopia (green-blind)

#87A6ED

Tritanopia (blue-blind)

#00C3C8

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #5bb5ee;
/* rgb */ color: rgb(91, 181, 238);
/* oklch */ color: oklch(74.1% 0.119 239.0);

Tailwind

colors: {
  custom: {
    50: '#96cbf3',
    500: '#5bb5ee',
    950: '#000000',
  },
}

SCSS

$custom: #5bb5ee;
$custom-light: #96cbf3;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb5ee",
  "rgb": {
    "r": 91,
    "g": 181,
    "b": 238
  },
  "hsl": {
    "h": 203.265,
    "s": 81.215,
    "l": 64.51
  },
  "oklch": {
    "l": 0.7409,
    "c": 0.11934,
    "h": 239
  },
  "luminance": 0.41445
}

Semantic roles & 50–950 ramp

primary

#5BB5EE

secondary

#ECCDB9

accent

#5B08DE

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0F1317

muted

#7E8285

Preview Lab

Preview with #5BB5EE

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

Preview Lab → · Contrast checker → · Palette generator →