#5B88EF#5B88EF

#5B88EF is a light, vivid blue. Relative luminance 0.261; OKLCH L 64.4% C 0.162 H 264.5°. Best body text is #000000 at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#5B88EF
RGB	rgb(91, 136, 239)
HSL	hsl(222, 82%, 65%)
HSV	hsv(222, 62%, 94%)
CMYK	cmyk(61.9%, 43.1%, 0%, 6.3%)
CIE-LAB	lab(58.10, 16.04, -56.52)
CIE-LCH	lch(58.10, 58.75, 285.84°)
OKLab	oklab(64.42% -0.0154 -0.1612)
OKLCH	oklch(64.42% 0.162 264.5)
XYZ	xyz(28.6931, 26.0619, 85.1630)
Luminance	0.2606 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B88EF #EFC25B

analogous

#5BD2EF #5B88EF #785BEF

triadic

#5B88EF #EF5B88 #88EF5B

tetradic

#5B88EF #EF5BD2 #EFC25B #5BEF78

square

#5B88EF #EF5BD2 #EFC25B #5BEF78

split-complementary

#5B88EF #EF785B #D2EF5B

monochromatic

#1246BD #2360EA #5B88EF #93B0F4 #CBD9FA

Accessibility & contrast

On white

3.38

#5B88EF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.21

#5B88EF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B88EF

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B88EF	#FFFFFF	#000000	##000000
##5B88EF	1.00	3.38	6.21	6.21
#FFFFFF	3.38	1.00	21.00	21.00
#000000	6.21	21.00	1.00	1.00
##000000	6.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5893F3

Deuteranopia (green-blind)

#4185ED

Tritanopia (blue-blind)

#009FB0

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #5b88ef;
/* rgb */ color: rgb(91, 136, 239);
/* oklch */ color: oklch(64.4% 0.162 264.5);

Tailwind

colors: {
  custom: {
    50: '#96aaf5',
    500: '#5b88ef',
    950: '#000000',
  },
}

SCSS

$custom: #5b88ef;
$custom-light: #96aaf5;
$custom-dark: #000000;

JSON

{
  "hex": "#5b88ef",
  "rgb": {
    "r": 91,
    "g": 136,
    "b": 239
  },
  "hsl": {
    "h": 221.757,
    "s": 82.222,
    "l": 64.706
  },
  "oklch": {
    "l": 0.6442,
    "c": 0.16195,
    "h": 264.5
  },
  "luminance": 0.26064
}

Semantic roles & 50–950 ramp

primary

#5B88EF

secondary

#ECDDBA

accent

#9D07DF

background

#F9FAFF

surface

#F2F4FE

border

#CCCED6

text

#0F0F17

muted

#7E7F85

Preview Lab

Preview with #5B88EF

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

Preview Lab → · Contrast checker → · Palette generator →