#5B87EB#5B87EB

#5B87EB is a light, vivid blue. Relative luminance 0.256; OKLCH L 64.0% C 0.158 H 264.5°. Best body text is #000000 at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#5B87EB
RGB	rgb(91, 135, 235)
HSL	hsl(222, 78%, 64%)
HSV	hsv(222, 61%, 92%)
CMYK	cmyk(61.3%, 42.6%, 0%, 7.8%)
CIE-LAB	lab(57.61, 15.30, -55.09)
CIE-LCH	lch(57.61, 57.17, 285.53°)
OKLab	oklab(63.97% -0.0151 -0.157)
OKLCH	oklch(63.97% 0.158 264.5)
XYZ	xyz(27.9686, 25.5478, 82.0385)
Luminance	0.2555 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B87EB #EBBF5B

analogous

#5BCFEB #5B87EB #775BEB

triadic

#5B87EB #EB5B87 #87EB5B

tetradic

#5B87EB #EB5BCF #EBBF5B #5BEB77

square

#5B87EB #EB5BCF #EBBF5B #5BEB77

split-complementary

#5B87EB #EB775B #CFEB5B

monochromatic

#1647B5 #245FE4 #5B87EB #92AFF2 #C8D7F8

Accessibility & contrast

On white

3.44

#5B87EB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.11

#5B87EB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B87EB

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B87EB	#FFFFFF	#000000	##000000
##5B87EB	1.00	3.44	6.11	6.11
#FFFFFF	3.44	1.00	21.00	21.00
#000000	6.11	21.00	1.00	1.00
##000000	6.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5991EF

Deuteranopia (green-blind)

#4484E9

Tritanopia (blue-blind)

#009EAD

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #5b87eb;
/* rgb */ color: rgb(91, 135, 235);
/* oklch */ color: oklch(64.0% 0.158 264.5);

Tailwind

colors: {
  custom: {
    50: '#95a9f2',
    500: '#5b87eb',
    950: '#000000',
  },
}

SCSS

$custom: #5b87eb;
$custom-light: #95a9f2;
$custom-dark: #000000;

JSON

{
  "hex": "#5b87eb",
  "rgb": {
    "r": 91,
    "g": 135,
    "b": 235
  },
  "hsl": {
    "h": 221.667,
    "s": 78.261,
    "l": 63.922
  },
  "oklch": {
    "l": 0.6397,
    "c": 0.15774,
    "h": 264.5
  },
  "luminance": 0.2555
}

Semantic roles & 50–950 ramp

primary

#5B87EB

secondary

#EADBB8

accent

#9B0BDB

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #5B87EB

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

Preview Lab → · Contrast checker → · Palette generator →