#5BB4DE#5BB4DE

#5BB4DE is a light, moderate cyan. Relative luminance 0.401; OKLCH L 73.2% C 0.105 H 231.0°. Best body text is #000000 at 9.03:1 contrast (WCAG AA passes).

Color values

HEX	#5BB4DE
RGB	rgb(91, 180, 222)
HSL	hsl(199, 66%, 61%)
HSV	hsv(199, 59%, 87%)
CMYK	cmyk(59%, 18.9%, 0%, 12.9%)
CIE-LAB	lab(69.57, -14.53, -29.15)
CIE-LCH	lch(69.57, 32.57, 243.50°)
OKLab	oklab(73.15% -0.0658 -0.0813)
OKLCH	oklch(73.15% 0.105 231)
XYZ	xyz(33.8154, 40.1373, 75.0583)
Luminance	0.4014 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB4DE #DE855B

analogous

#5BDEC7 #5BB4DE #5B73DE

triadic

#5BB4DE #DE5BB4 #B4DE5B

tetradic

#5BB4DE #C75BDE #DE855B #73DE5B

square

#5BB4DE #C75BDE #DE855B #73DE5B

split-complementary

#5BB4DE #DE5B73 #DEC75B

monochromatic

#20769F #2A9CD2 #5BB4DE #8ECBE8 #C1E3F3

Accessibility & contrast

On white

2.33

#5BB4DE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.03

#5BB4DE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB4DE

9.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB4DE	#FFFFFF	#000000	##000000
##5BB4DE	1.00	2.33	9.03	9.03
#FFFFFF	2.33	1.00	21.00	21.00
#000000	9.03	21.00	1.00	1.00
##000000	9.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9FB2E0

Deuteranopia (green-blind)

#8DA4DD

Tritanopia (blue-blind)

#00C0C2

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #5bb4de;
/* rgb */ color: rgb(91, 180, 222);
/* oklch */ color: oklch(73.2% 0.105 231.0);

Tailwind

colors: {
  custom: {
    50: '#94cae8',
    500: '#5bb4de',
    950: '#000000',
  },
}

SCSS

$custom: #5bb4de;
$custom-light: #94cae8;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb4de",
  "rgb": {
    "r": 91,
    "g": 180,
    "b": 222
  },
  "hsl": {
    "h": 199.237,
    "s": 66.497,
    "l": 61.373
  },
  "oklch": {
    "l": 0.73153,
    "c": 0.10466,
    "h": 231
  },
  "luminance": 0.40141
}

Semantic roles & 50–950 ramp

primary

#5BB4DE

secondary

#E3C2B2

accent

#5217CE

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #5BB4DE

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

Preview Lab → · Contrast checker → · Palette generator →