#5BB1DD#5BB1DD

#5BB1DD is a light, moderate cyan. Relative luminance 0.389; OKLCH L 72.4% C 0.105 H 233.1°. Best body text is #000000 at 8.78:1 contrast (WCAG AA passes).

Color values

HEX	#5BB1DD
RGB	rgb(91, 177, 221)
HSL	hsl(200, 66%, 61%)
HSV	hsv(200, 59%, 87%)
CMYK	cmyk(58.8%, 19.9%, 0%, 13.3%)
CIE-LAB	lab(68.67, -13.23, -29.98)
CIE-LCH	lch(68.67, 32.77, 246.18°)
OKLab	oklab(72.43% -0.063 -0.0838)
OKLCH	oklch(72.43% 0.105 233.1)
XYZ	xyz(33.0827, 38.8857, 74.1549)
Luminance	0.3889 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB1DD #DD875B

analogous

#5BDDC8 #5BB1DD #5B70DD

triadic

#5BB1DD #DD5BB1 #B1DD5B

tetradic

#5BB1DD #C85BDD #DD875B #70DD5B

square

#5BB1DD #C85BDD #DD875B #70DD5B

split-complementary

#5BB1DD #DD5B70 #DDC85B

monochromatic

#21739D #2B98D0 #5BB1DD #8EC9E8 #C0E1F2

Accessibility & contrast

On white

2.39

#5BB1DD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.78

#5BB1DD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB1DD

8.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB1DD	#FFFFFF	#000000	##000000
##5BB1DD	1.00	2.39	8.78	8.78
#FFFFFF	2.39	1.00	21.00	21.00
#000000	8.78	21.00	1.00	1.00
##000000	8.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9CAFDF

Deuteranopia (green-blind)

#89A2DC

Tritanopia (blue-blind)

#00BDC0

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #5bb1dd;
/* rgb */ color: rgb(91, 177, 221);
/* oklch */ color: oklch(72.4% 0.105 233.1);

Tailwind

colors: {
  custom: {
    50: '#94c8e7',
    500: '#5bb1dd',
    950: '#000000',
  },
}

SCSS

$custom: #5bb1dd;
$custom-light: #94c8e7;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb1dd",
  "rgb": {
    "r": 91,
    "g": 177,
    "b": 221
  },
  "hsl": {
    "h": 200.308,
    "s": 65.657,
    "l": 61.176
  },
  "oklch": {
    "l": 0.72426,
    "c": 0.1048,
    "h": 233.1
  },
  "luminance": 0.38889
}

Semantic roles & 50–950 ramp

primary

#5BB1DD

secondary

#E2C2B1

accent

#5518CE

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #5BB1DD

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

Preview Lab → · Contrast checker → · Palette generator →