#5591FF#5591FF

#5591FF is a light, vivid blue. Relative luminance 0.294; OKLCH L 67.0% C 0.175 H 261.4°. Best body text is #000000 at 6.88:1 contrast (WCAG AA passes).

Color values

HEX	#5591FF
RGB	rgb(85, 145, 255)
HSL	hsl(219, 100%, 67%)
HSV	hsv(219, 67%, 100%)
CMYK	cmyk(66.7%, 43.1%, 0%, 0%)
CIE-LAB	lab(61.13, 15.06, -60.50)
CIE-LCH	lch(61.13, 62.34, 283.98°)
OKLab	oklab(66.98% -0.0261 -0.1729)
OKLCH	oklch(66.98% 0.175 261.4)
XYZ	xyz(31.9153, 29.3989, 98.5809)
Luminance	0.2940 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5591FF #FFC355

analogous

#55E6FF #5591FF #6E55FF

triadic

#5591FF #FF5591 #91FF55

tetradic

#5591FF #FF55E6 #FFC355 #55FF6E

square

#5591FF #FF55E6 #FFC355 #55FF6E

split-complementary

#5591FF #FF6E55 #E6FF55

monochromatic

#004DDA #1869FF #5591FF #92B9FF #CFE0FF

Accessibility & contrast

On white

3.05

#5591FF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.88

#5591FF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5591FF

6.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5591FF	#FFFFFF	#000000	##000000
##5591FF	1.00	3.05	6.88	6.88
#FFFFFF	3.05	1.00	21.00	21.00
#000000	6.88	21.00	1.00	1.00
##000000	6.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C9CFF

Deuteranopia (green-blind)

#3F8CFD

Tritanopia (blue-blind)

#00AABC

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #5591ff;
/* rgb */ color: rgb(85, 145, 255);
/* oklch */ color: oklch(67.0% 0.175 261.4);

Tailwind

colors: {
  custom: {
    50: '#96b0ff',
    500: '#5591ff',
    950: '#000000',
  },
}

SCSS

$custom: #5591ff;
$custom-light: #96b0ff;
$custom-dark: #000000;

JSON

{
  "hex": "#5591ff",
  "rgb": {
    "r": 85,
    "g": 145,
    "b": 255
  },
  "hsl": {
    "h": 218.824,
    "s": 100,
    "l": 66.667
  },
  "oklch": {
    "l": 0.66976,
    "c": 0.17483,
    "h": 261.4
  },
  "luminance": 0.29402
}

Semantic roles & 50–950 ramp

primary

#5591FF

secondary

#F3E0BD

accent

#9500E6

background

#FAFAFF

surface

#F3F4FF

border

#CDCED7

text

#0F1018

muted

#7F7F86

Preview Lab

Preview with #5591FF

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

Preview Lab → · Contrast checker → · Palette generator →