#5BB1DE#5BB1DE

#5BB1DE is a light, moderate cyan. Relative luminance 0.389; OKLCH L 72.5% C 0.106 H 233.7°. Best body text is #000000 at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#5BB1DE
RGB	rgb(91, 177, 222)
HSL	hsl(201, 66%, 61%)
HSV	hsv(201, 59%, 87%)
CMYK	cmyk(59%, 20.3%, 0%, 12.9%)
CIE-LAB	lab(68.71, -12.93, -30.47)
CIE-LCH	lch(68.71, 33.10, 247.01°)
OKLab	oklab(72.47% -0.0626 -0.0851)
OKLCH	oklch(72.47% 0.106 233.7)
XYZ	xyz(33.2163, 38.9392, 74.8586)
Luminance	0.3894 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB1DE #DE885B

analogous

#5BDECA #5BB1DE #5B70DE

triadic

#5BB1DE #DE5BB1 #B1DE5B

tetradic

#5BB1DE #CA5BDE #DE885B #70DE5B

square

#5BB1DE #CA5BDE #DE885B #70DE5B

split-complementary

#5BB1DE #DE5B70 #DECA5B

monochromatic

#20739F #2A98D2 #5BB1DE #8EC9E8 #C1E1F3

Accessibility & contrast

On white

2.39

#5BB1DE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.79

#5BB1DE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB1DE

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB1DE	#FFFFFF	#000000	##000000
##5BB1DE	1.00	2.39	8.79	8.79
#FFFFFF	2.39	1.00	21.00	21.00
#000000	8.79	21.00	1.00	1.00
##000000	8.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9BAFE0

Deuteranopia (green-blind)

#89A2DD

Tritanopia (blue-blind)

#00BDC0

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #5bb1de;
/* rgb */ color: rgb(91, 177, 222);
/* oklch */ color: oklch(72.5% 0.106 233.7);

Tailwind

colors: {
  custom: {
    50: '#94c8e8',
    500: '#5bb1de',
    950: '#000000',
  },
}

SCSS

$custom: #5bb1de;
$custom-light: #94c8e8;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb1de",
  "rgb": {
    "r": 91,
    "g": 177,
    "b": 222
  },
  "hsl": {
    "h": 200.611,
    "s": 66.497,
    "l": 61.373
  },
  "oklch": {
    "l": 0.72469,
    "c": 0.1057,
    "h": 233.7
  },
  "luminance": 0.38942
}

Semantic roles & 50–950 ramp

primary

#5BB1DE

secondary

#E3C3B2

accent

#5617CE

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #5BB1DE

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

Preview Lab → · Contrast checker → · Palette generator →