#5591E8#5591E8

#5591E8 is a light, vivid blue. Relative luminance 0.280; OKLCH L 65.6% C 0.145 H 257.7°. Best body text is #000000 at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#5591E8
RGB	rgb(85, 145, 232)
HSL	hsl(216, 76%, 62%)
HSV	hsv(216, 63%, 91%)
CMYK	cmyk(63.4%, 37.5%, 0%, 9%)
CIE-LAB	lab(59.89, 7.27, -49.80)
CIE-LCH	lch(59.89, 50.32, 278.30°)
OKLab	oklab(65.61% -0.0308 -0.1415)
OKLCH	oklch(65.61% 0.145 257.7)
XYZ	xyz(28.4320, 28.0056, 80.2355)
Luminance	0.2801 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5591E8 #E8AC55

analogous

#55DBE8 #5591E8 #6255E8

triadic

#5591E8 #E85591 #91E855

tetradic

#5591E8 #E855DB #E8AC55 #55E862

square

#5591E8 #E855DB #E8AC55 #55E862

split-complementary

#5591E8 #E86255 #DBE855

monochromatic

#1754AB #1F6EE1 #5591E8 #8BB4EF #C1D7F7

Accessibility & contrast

On white

3.18

#5591E8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.60

#5591E8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5591E8

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5591E8	#FFFFFF	#000000	##000000
##5591E8	1.00	3.18	6.60	6.60
#FFFFFF	3.18	1.00	21.00	21.00
#000000	6.60	21.00	1.00	1.00
##000000	6.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B98EC

Deuteranopia (green-blind)

#568AE6

Tritanopia (blue-blind)

#00A5B1

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #5591e8;
/* rgb */ color: rgb(85, 145, 232);
/* oklch */ color: oklch(65.6% 0.145 257.7);

Tailwind

colors: {
  custom: {
    50: '#92b0f0',
    500: '#5591e8',
    950: '#000000',
  },
}

SCSS

$custom: #5591e8;
$custom-light: #92b0f0;
$custom-dark: #000000;

JSON

{
  "hex": "#5591e8",
  "rgb": {
    "r": 85,
    "g": 145,
    "b": 232
  },
  "hsl": {
    "h": 215.51,
    "s": 76.166,
    "l": 62.157
  },
  "oklch": {
    "l": 0.65615,
    "c": 0.14479,
    "h": 257.7
  },
  "luminance": 0.28008
}

Semantic roles & 50–950 ramp

primary

#5591E8

secondary

#E7D1B1

accent

#850DD8

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #5591E8

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

Preview Lab → · Contrast checker → · Palette generator →