#5B9DDD#5B9DDD

#5B9DDD is a light, moderate cyan. Relative luminance 0.316; OKLCH L 67.9% C 0.117 H 249.2°. Best body text is #000000 at 7.31:1 contrast (WCAG AA passes).

Color values

HEX	#5B9DDD
RGB	rgb(91, 157, 221)
HSL	hsl(210, 66%, 61%)
HSV	hsv(210, 59%, 87%)
CMYK	cmyk(58.8%, 29%, 0%, 13.3%)
CIE-LAB	lab(62.97, -2.19, -38.83)
CIE-LCH	lch(62.97, 38.89, 266.77°)
OKLab	oklab(67.92% -0.0414 -0.1093)
OKLCH	oklch(67.92% 0.117 249.2)
XYZ	xyz(29.4178, 31.5559, 72.9332)
Luminance	0.3156 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B9DDD #DD9B5B

analogous

#5BDDDC #5B9DDD #5B5CDD

triadic

#5B9DDD #DD5B9D #9DDD5B

tetradic

#5B9DDD #DC5BDD #DD9B5B #5CDD5B

square

#5B9DDD #DC5BDD #DD9B5B #5CDD5B

split-complementary

#5B9DDD #DD5B5C #DDDC5B

monochromatic

#21609D #2B7FD0 #5B9DDD #8EBBE8 #C0DAF2

Accessibility & contrast

On white

2.87

#5B9DDD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.31

#5B9DDD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5B9DDD

7.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B9DDD	#FFFFFF	#000000	##000000
##5B9DDD	1.00	2.87	7.31	7.31
#FFFFFF	2.87	1.00	21.00	21.00
#000000	7.31	21.00	1.00	1.00
##000000	7.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#829FE0

Deuteranopia (green-blind)

#7193DC

Tritanopia (blue-blind)

#00ACB3

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #5b9ddd;
/* rgb */ color: rgb(91, 157, 221);
/* oklch */ color: oklch(67.9% 0.117 249.2);

Tailwind

colors: {
  custom: {
    50: '#93b9e8',
    500: '#5b9ddd',
    950: '#000000',
  },
}

SCSS

$custom: #5b9ddd;
$custom-light: #93b9e8;
$custom-dark: #000000;

JSON

{
  "hex": "#5b9ddd",
  "rgb": {
    "r": 91,
    "g": 157,
    "b": 221
  },
  "hsl": {
    "h": 209.538,
    "s": 65.657,
    "l": 61.176
  },
  "oklch": {
    "l": 0.67922,
    "c": 0.11692,
    "h": 249.2
  },
  "luminance": 0.31559
}

Semantic roles & 50–950 ramp

primary

#5B9DDD

secondary

#E2CAB1

accent

#7118CE

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #5B9DDD

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

Preview Lab → · Contrast checker → · Palette generator →