#5B8DDD#5B8DDD

#5B8DDD is a light, vivid blue. Relative luminance 0.265; OKLCH L 64.4% C 0.132 H 259.4°. Best body text is #000000 at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#5B8DDD
RGB	rgb(91, 141, 221)
HSL	hsl(217, 66%, 61%)
HSV	hsv(217, 59%, 87%)
CMYK	cmyk(58.8%, 36.2%, 0%, 13.3%)
CIE-LAB	lab(58.50, 7.09, -45.86)
CIE-LCH	lch(58.50, 46.41, 278.79°)
OKLab	oklab(64.42% -0.0243 -0.1299)
OKLCH	oklch(64.42% 0.132 259.4)
XYZ	xyz(26.8858, 26.4920, 72.0892)
Luminance	0.2649 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B8DDD #DDAB5B

analogous

#5BCEDD #5B8DDD #6A5BDD

triadic

#5B8DDD #DD5B8D #8DDD5B

tetradic

#5B8DDD #DD5BCE #DDAB5B #5BDD6A

square

#5B8DDD #DD5BCE #DDAB5B #5BDD6A

split-complementary

#5B8DDD #DD6A5B #CEDD5B

monochromatic

#21509D #2B6AD0 #5B8DDD #8EB0E8 #C0D3F2

Accessibility & contrast

On white

3.33

#5B8DDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.30

#5B8DDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B8DDD

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B8DDD	#FFFFFF	#000000	##000000
##5B8DDD	1.00	3.33	6.30	6.30
#FFFFFF	3.33	1.00	21.00	21.00
#000000	6.30	21.00	1.00	1.00
##000000	6.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B93E0

Deuteranopia (green-blind)

#5A87DB

Tritanopia (blue-blind)

#009FAA

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #5b8ddd;
/* rgb */ color: rgb(91, 141, 221);
/* oklch */ color: oklch(64.4% 0.132 259.4);

Tailwind

colors: {
  custom: {
    50: '#93aee8',
    500: '#5b8ddd',
    950: '#000000',
  },
}

SCSS

$custom: #5b8ddd;
$custom-light: #93aee8;
$custom-dark: #000000;

JSON

{
  "hex": "#5b8ddd",
  "rgb": {
    "r": 91,
    "g": 141,
    "b": 221
  },
  "hsl": {
    "h": 216.923,
    "s": 65.657,
    "l": 61.176
  },
  "oklch": {
    "l": 0.64423,
    "c": 0.13219,
    "h": 259.4
  },
  "luminance": 0.26494
}

Semantic roles & 50–950 ramp

primary

#5B8DDD

secondary

#E2D0B1

accent

#8818CE

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #5B8DDD

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

Preview Lab → · Contrast checker → · Palette generator →