#5588EB#5588EB

#5588EB is a light, vivid blue. Relative luminance 0.255; OKLCH L 63.9% C 0.159 H 262.3°. Best body text is #000000 at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#5588EB
RGB	rgb(85, 136, 235)
HSL	hsl(220, 79%, 63%)
HSV	hsv(220, 64%, 92%)
CMYK	cmyk(63.8%, 42.1%, 0%, 7.8%)
CIE-LAB	lab(57.59, 13.65, -55.12)
CIE-LCH	lch(57.59, 56.79, 283.91°)
OKLab	oklab(63.89% -0.0213 -0.1572)
OKLCH	oklch(63.89% 0.159 262.3)
XYZ	xyz(27.5406, 25.5352, 82.0586)
Luminance	0.2554 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5588EB #EBB855

analogous

#55D3EB #5588EB #6D55EB

triadic

#5588EB #EB5588 #88EB55

tetradic

#5588EB #EB55D3 #EBB855 #55EB6D

square

#5588EB #EB55D3 #EBB855 #55EB6D

split-complementary

#5588EB #EB6D55 #D3EB55

monochromatic

#154AB1 #1E62E5 #5588EB #8CAEF1 #C3D5F8

Accessibility & contrast

On white

3.44

#5588EB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.11

#5588EB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5588EB

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5588EB	#FFFFFF	#000000	##000000
##5588EB	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)

#5A92EF

Deuteranopia (green-blind)

#4384E9

Tritanopia (blue-blind)

#009FAE

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #5588eb;
/* rgb */ color: rgb(85, 136, 235);
/* oklch */ color: oklch(63.9% 0.159 262.3);

Tailwind

colors: {
  custom: {
    50: '#92aaf2',
    500: '#5588eb',
    950: '#000000',
  },
}

SCSS

$custom: #5588eb;
$custom-light: #92aaf2;
$custom-dark: #000000;

JSON

{
  "hex": "#5588eb",
  "rgb": {
    "r": 85,
    "g": 136,
    "b": 235
  },
  "hsl": {
    "h": 219.6,
    "s": 78.947,
    "l": 62.745
  },
  "oklch": {
    "l": 0.63885,
    "c": 0.15864,
    "h": 262.3
  },
  "luminance": 0.25538
}

Semantic roles & 50–950 ramp

primary

#5588EB

secondary

#E9D7B3

accent

#940ADB

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #5588EB

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

Preview Lab → · Contrast checker → · Palette generator →