#5583F9#5583F9

#5583F9 is a light, vivid blue. Relative luminance 0.250; OKLCH L 63.7% C 0.183 H 265.5°. Best body text is #000000 at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#5583F9
RGB	rgb(85, 131, 249)
HSL	hsl(223, 93%, 65%)
HSV	hsv(223, 66%, 98%)
CMYK	cmyk(65.9%, 47.4%, 0%, 2.4%)
CIE-LAB	lab(57.08, 21.45, -63.70)
CIE-LCH	lch(57.08, 67.22, 288.61°)
OKLab	oklab(63.75% -0.0144 -0.1825)
OKLCH	oklch(63.75% 0.183 265.5)
XYZ	xyz(28.9555, 25.0007, 92.9038)
Luminance	0.2500 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5583F9 #F9CB55

analogous

#55D5F9 #5583F9 #7955F9

triadic

#5583F9 #F95583 #83F955

tetradic

#5583F9 #F955D5 #F9CB55 #55F979

square

#5583F9 #F955D5 #F9CB55 #55F979

split-complementary

#5583F9 #F97955 #D5F955

monochromatic

#073FCC #1A58F7 #5583F9 #90AEFB #CBD9FD

Accessibility & contrast

On white

3.50

#5583F9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.00

#5583F9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5583F9

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5583F9	#FFFFFF	#000000	##000000
##5583F9	1.00	3.50	6.00	6.00
#FFFFFF	3.50	1.00	21.00	21.00
#000000	6.00	21.00	1.00	1.00
##000000	6.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4591FD

Deuteranopia (green-blind)

#1E82F7

Tritanopia (blue-blind)

#009EB2

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #5583f9;
/* rgb */ color: rgb(85, 131, 249);
/* oklch */ color: oklch(63.7% 0.183 265.5);

Tailwind

colors: {
  custom: {
    50: '#95a6fc',
    500: '#5583f9',
    950: '#000000',
  },
}

SCSS

$custom: #5583f9;
$custom-light: #95a6fc;
$custom-dark: #000000;

JSON

{
  "hex": "#5583f9",
  "rgb": {
    "r": 85,
    "g": 131,
    "b": 249
  },
  "hsl": {
    "h": 223.171,
    "s": 93.182,
    "l": 65.49
  },
  "oklch": {
    "l": 0.6375,
    "c": 0.18307,
    "h": 265.5
  },
  "luminance": 0.25003
}

Semantic roles & 50–950 ramp

primary

#5583F9

secondary

#F0E1B9

accent

#A500E6

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0F0F17

muted

#7E7F85

Preview Lab

Preview with #5583F9

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

Preview Lab → · Contrast checker → · Palette generator →