#5B8FEB#5B8FEB

#5B8FEB is a light, vivid blue. Relative luminance 0.279; OKLCH L 65.6% C 0.149 H 261.0°. Best body text is #000000 at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#5B8FEB
RGB	rgb(91, 143, 235)
HSL	hsl(218, 78%, 64%)
HSV	hsv(218, 61%, 92%)
CMYK	cmyk(61.3%, 39.1%, 0%, 7.8%)
CIE-LAB	lab(59.77, 10.52, -51.64)
CIE-LCH	lch(59.77, 52.70, 281.51°)
OKLab	oklab(65.64% -0.0232 -0.1468)
OKLCH	oklch(65.64% 0.149 261)
XYZ	xyz(29.1270, 27.8646, 82.4246)
Luminance	0.2787 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B8FEB #EBB75B

analogous

#5BD7EB #5B8FEB #6F5BEB

triadic

#5B8FEB #EB5B8F #8FEB5B

tetradic

#5B8FEB #EB5BD7 #EBB75B #5BEB6F

square

#5B8FEB #EB5BD7 #EBB75B #5BEB6F

split-complementary

#5B8FEB #EB6F5B #D7EB5B

monochromatic

#1650B5 #246AE4 #5B8FEB #92B4F2 #C8DAF8

Accessibility & contrast

On white

3.19

#5B8FEB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.57

#5B8FEB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B8FEB

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B8FEB	#FFFFFF	#000000	##000000
##5B8FEB	1.00	3.19	6.57	6.57
#FFFFFF	3.19	1.00	21.00	21.00
#000000	6.57	21.00	1.00	1.00
##000000	6.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6797EF

Deuteranopia (green-blind)

#538AE9

Tritanopia (blue-blind)

#00A4B2

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #5b8feb;
/* rgb */ color: rgb(91, 143, 235);
/* oklch */ color: oklch(65.6% 0.149 261.0);

Tailwind

colors: {
  custom: {
    50: '#95aff2',
    500: '#5b8feb',
    950: '#000000',
  },
}

SCSS

$custom: #5b8feb;
$custom-light: #95aff2;
$custom-dark: #000000;

JSON

{
  "hex": "#5b8feb",
  "rgb": {
    "r": 91,
    "g": 143,
    "b": 235
  },
  "hsl": {
    "h": 218.333,
    "s": 78.261,
    "l": 63.922
  },
  "oklch": {
    "l": 0.65639,
    "c": 0.14864,
    "h": 261
  },
  "luminance": 0.27867
}

Semantic roles & 50–950 ramp

primary

#5B8FEB

secondary

#EAD8B8

accent

#900BDB

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #5B8FEB

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

Preview Lab → · Contrast checker → · Palette generator →