#5B87F8#5B87F8

#5B87F8 is a light, vivid blue. Relative luminance 0.263; OKLCH L 64.8% C 0.175 H 265.7°. Best body text is #000000 at 6.27:1 contrast (WCAG AA passes).

Color values

HEX	#5B87F8
RGB	rgb(91, 135, 248)
HSL	hsl(223, 92%, 66%)
HSV	hsv(223, 63%, 97%)
CMYK	cmyk(63.3%, 45.6%, 0%, 2.7%)
CIE-LAB	lab(58.35, 19.66, -61.10)
CIE-LCH	lch(58.35, 64.18, 287.84°)
OKLab	oklab(64.78% -0.013 -0.1747)
OKLCH	oklch(64.78% 0.175 265.7)
XYZ	xyz(29.9158, 26.3267, 92.2938)
Luminance	0.2633 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B87F8 #F8CC5B

analogous

#5BD5F8 #5B87F8 #7E5BF8

triadic

#5B87F8 #F85B87 #87F85B

tetradic

#5B87F8 #F85BD5 #F8CC5B #5BF87E

square

#5B87F8 #F85BD5 #F8CC5B #5BF87E

split-complementary

#5B87F8 #F87E5B #D5F85B

monochromatic

#0941D0 #205CF5 #5B87F8 #96B2FB #D0DDFD

Accessibility & contrast

On white

3.35

#5B87F8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.27

#5B87F8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B87F8

6.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B87F8	#FFFFFF	#000000	##000000
##5B87F8	1.00	3.35	6.27	6.27
#FFFFFF	3.35	1.00	21.00	21.00
#000000	6.27	21.00	1.00	1.00
##000000	6.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F94FC

Deuteranopia (green-blind)

#3386F6

Tritanopia (blue-blind)

#00A1B3

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #5b87f8;
/* rgb */ color: rgb(91, 135, 248);
/* oklch */ color: oklch(64.8% 0.175 265.7);

Tailwind

colors: {
  custom: {
    50: '#97a9fb',
    500: '#5b87f8',
    950: '#000000',
  },
}

SCSS

$custom: #5b87f8;
$custom-light: #97a9fb;
$custom-dark: #000000;

JSON

{
  "hex": "#5b87f8",
  "rgb": {
    "r": 91,
    "g": 135,
    "b": 248
  },
  "hsl": {
    "h": 223.185,
    "s": 91.813,
    "l": 66.471
  },
  "oklch": {
    "l": 0.64778,
    "c": 0.17516,
    "h": 265.7
  },
  "luminance": 0.26329
}

Semantic roles & 50–950 ramp

primary

#5B87F8

secondary

#F1E3BE

accent

#A500E6

background

#FAFAFF

surface

#F3F4FF

border

#CDCED7

text

#0F0F17

muted

#7F7F85

Preview Lab

Preview with #5B87F8

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

Preview Lab → · Contrast checker → · Palette generator →