#5BB1DF#5BB1DF

#5BB1DF is a light, moderate cyan. Relative luminance 0.390; OKLCH L 72.5% C 0.107 H 234.3°. Best body text is #000000 at 8.80:1 contrast (WCAG AA passes).

Color values

HEX	#5BB1DF
RGB	rgb(91, 177, 223)
HSL	hsl(201, 67%, 62%)
HSV	hsv(201, 59%, 87%)
CMYK	cmyk(59.2%, 20.6%, 0%, 12.5%)
CIE-LAB	lab(68.75, -12.62, -30.96)
CIE-LCH	lch(68.75, 33.43, 247.82°)
OKLab	oklab(72.51% -0.0623 -0.0865)
OKLCH	oklch(72.51% 0.107 234.3)
XYZ	xyz(33.3507, 38.9930, 75.5666)
Luminance	0.3900 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB1DF #DF895B

analogous

#5BDFCB #5BB1DF #5B6FDF

triadic

#5BB1DF #DF5BB1 #B1DF5B

tetradic

#5BB1DF #CB5BDF #DF895B #6FDF5B

square

#5BB1DF #CB5BDF #DF895B #6FDF5B

split-complementary

#5BB1DF #DF5B6F #DFCB5B

monochromatic

#1F73A0 #2998D4 #5BB1DF #8EC9E9 #C1E2F3

Accessibility & contrast

On white

2.39

#5BB1DF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.80

#5BB1DF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB1DF

8.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB1DF	#FFFFFF	#000000	##000000
##5BB1DF	1.00	2.39	8.80	8.80
#FFFFFF	2.39	1.00	21.00	21.00
#000000	8.80	21.00	1.00	1.00
##000000	8.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9BAFE1

Deuteranopia (green-blind)

#89A2DE

Tritanopia (blue-blind)

#00BDC0

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #5bb1df;
/* rgb */ color: rgb(91, 177, 223);
/* oklch */ color: oklch(72.5% 0.107 234.3);

Tailwind

colors: {
  custom: {
    50: '#94c8e9',
    500: '#5bb1df',
    950: '#000000',
  },
}

SCSS

$custom: #5bb1df;
$custom-light: #94c8e9;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb1df",
  "rgb": {
    "r": 91,
    "g": 177,
    "b": 223
  },
  "hsl": {
    "h": 200.909,
    "s": 67.347,
    "l": 61.569
  },
  "oklch": {
    "l": 0.72513,
    "c": 0.10663,
    "h": 234.3
  },
  "luminance": 0.38996
}

Semantic roles & 50–950 ramp

primary

#5BB1DF

secondary

#E3C3B2

accent

#5716CF

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #5BB1DF

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

Preview Lab → · Contrast checker → · Palette generator →