#5581EB#5581EB

#5581EB is a light, vivid blue. Relative luminance 0.236; OKLCH L 62.4% C 0.167 H 265.0°. Best body text is #000000 at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#5581EB
RGB	rgb(85, 129, 235)
HSL	hsl(222, 79%, 63%)
HSV	hsv(222, 64%, 92%)
CMYK	cmyk(63.8%, 45.1%, 0%, 7.8%)
CIE-LAB	lab(55.71, 17.89, -58.13)
CIE-LCH	lch(55.71, 60.82, 287.11°)
OKLab	oklab(62.44% -0.0145 -0.1661)
OKLCH	oklch(62.44% 0.167 265)
XYZ	xyz(26.5868, 23.6275, 81.7406)
Luminance	0.2363 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5581EB #EBBF55

analogous

#55CCEB #5581EB #7455EB

triadic

#5581EB #EB5581 #81EB55

tetradic

#5581EB #EB55CC #EBBF55 #55EB74

square

#5581EB #EB55CC #EBBF55 #55EB74

split-complementary

#5581EB #EB7455 #CCEB55

monochromatic

#1543B1 #1E58E5 #5581EB #8CAAF1 #C3D2F8

Accessibility & contrast

On white

3.67

#5581EB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.73

#5581EB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5581EB

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5581EB	#FFFFFF	#000000	##000000
##5581EB	1.00	3.67	5.73	5.73
#FFFFFF	3.67	1.00	21.00	21.00
#000000	5.73	21.00	1.00	1.00
##000000	5.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D8DEF

Deuteranopia (green-blind)

#337FE9

Tritanopia (blue-blind)

#0099AB

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #5581eb;
/* rgb */ color: rgb(85, 129, 235);
/* oklch */ color: oklch(62.4% 0.167 265.0);

Tailwind

colors: {
  custom: {
    50: '#93a5f2',
    500: '#5581eb',
    950: '#000000',
  },
}

SCSS

$custom: #5581eb;
$custom-light: #93a5f2;
$custom-dark: #000000;

JSON

{
  "hex": "#5581eb",
  "rgb": {
    "r": 85,
    "g": 129,
    "b": 235
  },
  "hsl": {
    "h": 222.4,
    "s": 78.947,
    "l": 62.745
  },
  "oklch": {
    "l": 0.62439,
    "c": 0.16677,
    "h": 265
  },
  "luminance": 0.2363
}

Semantic roles & 50–950 ramp

primary

#5581EB

secondary

#E9D9B3

accent

#9E0ADB

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #5581EB

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

Preview Lab → · Contrast checker → · Palette generator →