#5583FA#5583FA

#5583FA is a light, vivid blue. Relative luminance 0.251; OKLCH L 63.8% C 0.184 H 265.6°. Best body text is #000000 at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#5583FA
RGB	rgb(85, 131, 250)
HSL	hsl(223, 94%, 66%)
HSV	hsv(223, 66%, 98%)
CMYK	cmyk(66%, 47.6%, 0%, 2%)
CIE-LAB	lab(57.14, 21.79, -64.16)
CIE-LCH	lch(57.14, 67.76, 288.76°)
OKLab	oklab(63.82% -0.0143 -0.1838)
OKLCH	oklch(63.82% 0.184 265.6)
XYZ	xyz(29.1119, 25.0632, 93.7274)
Luminance	0.2507 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5583FA #FACC55

analogous

#55D5FA #5583FA #7955FA

triadic

#5583FA #FA5583 #83FA55

tetradic

#5583FA #FA55D5 #FACC55 #55FA79

square

#5583FA #FA55D5 #FACC55 #55FA79

split-complementary

#5583FA #FA7955 #D5FA55

monochromatic

#063ECF #1A58F8 #5583FA #90AEFC #CCDAFD

Accessibility & contrast

On white

3.49

#5583FA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.01

#5583FA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5583FA

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5583FA	#FFFFFF	#000000	##000000
##5583FA	1.00	3.49	6.01	6.01
#FFFFFF	3.49	1.00	21.00	21.00
#000000	6.01	21.00	1.00	1.00
##000000	6.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4391FE

Deuteranopia (green-blind)

#1B82F8

Tritanopia (blue-blind)

#009FB2

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #5583fa;
/* rgb */ color: rgb(85, 131, 250);
/* oklch */ color: oklch(63.8% 0.184 265.6);

Tailwind

colors: {
  custom: {
    50: '#95a6fd',
    500: '#5583fa',
    950: '#000000',
  },
}

SCSS

$custom: #5583fa;
$custom-light: #95a6fd;
$custom-dark: #000000;

JSON

{
  "hex": "#5583fa",
  "rgb": {
    "r": 85,
    "g": 131,
    "b": 250
  },
  "hsl": {
    "h": 223.273,
    "s": 94.286,
    "l": 65.686
  },
  "oklch": {
    "l": 0.63816,
    "c": 0.18439,
    "h": 265.6
  },
  "luminance": 0.25066
}

Semantic roles & 50–950 ramp

primary

#5583FA

secondary

#F1E2BA

accent

#A600E6

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0F0F18

muted

#7E7F86

Preview Lab

Preview with #5583FA

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

Preview Lab → · Contrast checker → · Palette generator →