#5B8BEB#5B8BEB

#5B8BEB is a light, vivid blue. Relative luminance 0.267; OKLCH L 64.8% C 0.153 H 262.8°. Best body text is #000000 at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#5B8BEB
RGB	rgb(91, 139, 235)
HSL	hsl(220, 78%, 64%)
HSV	hsv(220, 61%, 92%)
CMYK	cmyk(61.3%, 40.9%, 0%, 7.8%)
CIE-LAB	lab(58.68, 12.90, -53.37)
CIE-LCH	lch(58.68, 54.91, 283.59°)
OKLab	oklab(64.8% -0.0192 -0.1519)
OKLCH	oklch(64.8% 0.153 262.8)
XYZ	xyz(28.5372, 26.6850, 82.2280)
Luminance	0.2669 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B8BEB #EBBB5B

analogous

#5BD3EB #5B8BEB #735BEB

triadic

#5B8BEB #EB5B8B #8BEB5B

tetradic

#5B8BEB #EB5BD3 #EBBB5B #5BEB73

square

#5B8BEB #EB5BD3 #EBBB5B #5BEB73

split-complementary

#5B8BEB #EB735B #D3EB5B

monochromatic

#164BB5 #2464E4 #5B8BEB #92B2F2 #C8D8F8

Accessibility & contrast

On white

3.31

#5B8BEB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.34

#5B8BEB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B8BEB

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B8BEB	#FFFFFF	#000000	##000000
##5B8BEB	1.00	3.31	6.34	6.34
#FFFFFF	3.31	1.00	21.00	21.00
#000000	6.34	21.00	1.00	1.00
##000000	6.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6094EF

Deuteranopia (green-blind)

#4B87E9

Tritanopia (blue-blind)

#00A1B0

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #5b8beb;
/* rgb */ color: rgb(91, 139, 235);
/* oklch */ color: oklch(64.8% 0.153 262.8);

Tailwind

colors: {
  custom: {
    50: '#95acf2',
    500: '#5b8beb',
    950: '#000000',
  },
}

SCSS

$custom: #5b8beb;
$custom-light: #95acf2;
$custom-dark: #000000;

JSON

{
  "hex": "#5b8beb",
  "rgb": {
    "r": 91,
    "g": 139,
    "b": 235
  },
  "hsl": {
    "h": 220,
    "s": 78.261,
    "l": 63.922
  },
  "oklch": {
    "l": 0.648,
    "c": 0.15313,
    "h": 262.8
  },
  "luminance": 0.26688
}

Semantic roles & 50–950 ramp

primary

#5B8BEB

secondary

#EAD9B8

accent

#950BDB

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #5B8BEB

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

Preview Lab → · Contrast checker → · Palette generator →