#5BB4EB#5BB4EB

#5BB4EB is a light, moderate cyan. Relative luminance 0.409; OKLCH L 73.7% C 0.117 H 238.3°. Best body text is #000000 at 9.17:1 contrast (WCAG AA passes).

Color values

HEX	#5BB4EB
RGB	rgb(91, 180, 235)
HSL	hsl(203, 78%, 64%)
HSV	hsv(203, 61%, 92%)
CMYK	cmyk(61.3%, 23.4%, 0%, 7.8%)
CIE-LAB	lab(70.08, -10.52, -35.45)
CIE-LCH	lch(70.08, 36.98, 253.46°)
OKLab	oklab(73.73% -0.0614 -0.0994)
OKLCH	oklch(73.73% 0.117 238.3)
XYZ	xyz(35.6253, 40.8613, 84.5907)
Luminance	0.4087 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB4EB #EB925B

analogous

#5BEBDA #5BB4EB #5B6CEB

triadic

#5BB4EB #EB5BB4 #B4EB5B

tetradic

#5BB4EB #DA5BEB #EB925B #6CEB5B

square

#5BB4EB #DA5BEB #EB925B #6CEB5B

split-complementary

#5BB4EB #EB5B6C #EBDA5B

monochromatic

#1679B5 #249BE4 #5BB4EB #92CDF2 #C8E6F8

Accessibility & contrast

On white

2.29

#5BB4EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.17

#5BB4EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB4EB

9.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB4EB	#FFFFFF	#000000	##000000
##5BB4EB	1.00	2.29	9.17	9.17
#FFFFFF	2.29	1.00	21.00	21.00
#000000	9.17	21.00	1.00	1.00
##000000	9.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9BB3EE

Deuteranopia (green-blind)

#87A5EA

Tritanopia (blue-blind)

#00C2C7

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #5bb4eb;
/* rgb */ color: rgb(91, 180, 235);
/* oklch */ color: oklch(73.7% 0.117 238.3);

Tailwind

colors: {
  custom: {
    50: '#96caf1',
    500: '#5bb4eb',
    950: '#000000',
  },
}

SCSS

$custom: #5bb4eb;
$custom-light: #96caf1;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb4eb",
  "rgb": {
    "r": 91,
    "g": 180,
    "b": 235
  },
  "hsl": {
    "h": 202.917,
    "s": 78.261,
    "l": 63.922
  },
  "oklch": {
    "l": 0.73729,
    "c": 0.11685,
    "h": 238.3
  },
  "luminance": 0.40865
}

Semantic roles & 50–950 ramp

primary

#5BB4EB

secondary

#EACBB8

accent

#5A0BDB

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #5BB4EB

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

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