#5580EB#5580EB

#5580EB is a light, vivid blue. Relative luminance 0.234; OKLCH L 62.2% C 0.168 H 265.4°. Best body text is #000000 at 5.67:1 contrast (WCAG AA passes).

Color values

HEX	#5580EB
RGB	rgb(85, 128, 235)
HSL	hsl(223, 79%, 63%)
HSV	hsv(223, 64%, 92%)
CMYK	cmyk(63.8%, 45.5%, 0%, 7.8%)
CIE-LAB	lab(55.45, 18.50, -58.55)
CIE-LCH	lch(55.45, 61.41, 287.53°)
OKLab	oklab(62.24% -0.0136 -0.1674)
OKLCH	oklch(62.24% 0.168 265.4)
XYZ	xyz(26.4557, 23.3653, 81.6969)
Luminance	0.2337 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5580EB #EBC055

analogous

#55CBEB #5580EB #7555EB

triadic

#5580EB #EB5580 #80EB55

tetradic

#5580EB #EB55CB #EBC055 #55EB75

square

#5580EB #EB55CB #EBC055 #55EB75

split-complementary

#5580EB #EB7555 #CBEB55

monochromatic

#1542B1 #1E57E5 #5580EB #8CA9F1 #C3D2F8

Accessibility & contrast

On white

3.70

#5580EB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.67

#5580EB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5580EB

5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5580EB	#FFFFFF	#000000	##000000
##5580EB	1.00	3.70	5.67	5.67
#FFFFFF	3.70	1.00	21.00	21.00
#000000	5.67	21.00	1.00	1.00
##000000	5.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B8CEF

Deuteranopia (green-blind)

#307EE9

Tritanopia (blue-blind)

#0099AA

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #5580eb;
/* rgb */ color: rgb(85, 128, 235);
/* oklch */ color: oklch(62.2% 0.168 265.4);

Tailwind

colors: {
  custom: {
    50: '#93a4f2',
    500: '#5580eb',
    950: '#000000',
  },
}

SCSS

$custom: #5580eb;
$custom-light: #93a4f2;
$custom-dark: #000000;

JSON

{
  "hex": "#5580eb",
  "rgb": {
    "r": 85,
    "g": 128,
    "b": 235
  },
  "hsl": {
    "h": 222.8,
    "s": 78.947,
    "l": 62.745
  },
  "oklch": {
    "l": 0.62235,
    "c": 0.16795,
    "h": 265.4
  },
  "luminance": 0.23368
}

Semantic roles & 50–950 ramp

primary

#5580EB

secondary

#E9D9B3

accent

#9F0ADB

background

#F9FAFE

surface

#F2F3FD

border

#CCCDD5

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #5580EB

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

Preview Lab → · Contrast checker → · Palette generator →