#5591E9#5591E9

#5591E9 is a light, vivid blue. Relative luminance 0.281; OKLCH L 65.7% C 0.146 H 257.9°. Best body text is #000000 at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#5591E9
RGB	rgb(85, 145, 233)
HSL	hsl(216, 77%, 62%)
HSV	hsv(216, 64%, 91%)
CMYK	cmyk(63.5%, 37.8%, 0%, 8.6%)
CIE-LAB	lab(59.95, 7.60, -50.27)
CIE-LCH	lch(59.95, 50.84, 278.60°)
OKLab	oklab(65.67% -0.0305 -0.1429)
OKLCH	oklch(65.67% 0.146 257.9)
XYZ	xyz(28.5744, 28.0626, 80.9857)
Luminance	0.2807 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5591E9 #E9AD55

analogous

#55DBE9 #5591E9 #6355E9

triadic

#5591E9 #E95591 #91E955

tetradic

#5591E9 #E955DB #E9AD55 #55E963

square

#5591E9 #E955DB #E9AD55 #55E963

split-complementary

#5591E9 #E96355 #DBE955

monochromatic

#1654AD #1F6EE2 #5591E9 #8BB4F0 #C1D7F7

Accessibility & contrast

On white

3.18

#5591E9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.61

#5591E9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5591E9

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5591E9	#FFFFFF	#000000	##000000
##5591E9	1.00	3.18	6.61	6.61
#FFFFFF	3.18	1.00	21.00	21.00
#000000	6.61	21.00	1.00	1.00
##000000	6.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A98ED

Deuteranopia (green-blind)

#558AE7

Tritanopia (blue-blind)

#00A5B2

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #5591e9;
/* rgb */ color: rgb(85, 145, 233);
/* oklch */ color: oklch(65.7% 0.146 257.9);

Tailwind

colors: {
  custom: {
    50: '#92b0f0',
    500: '#5591e9',
    950: '#000000',
  },
}

SCSS

$custom: #5591e9;
$custom-light: #92b0f0;
$custom-dark: #000000;

JSON

{
  "hex": "#5591e9",
  "rgb": {
    "r": 85,
    "g": 145,
    "b": 233
  },
  "hsl": {
    "h": 215.676,
    "s": 77.083,
    "l": 62.353
  },
  "oklch": {
    "l": 0.65672,
    "c": 0.1461,
    "h": 257.9
  },
  "luminance": 0.28065
}

Semantic roles & 50–950 ramp

primary

#5591E9

secondary

#E8D2B2

accent

#860CD9

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #5591E9

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

Preview Lab → · Contrast checker → · Palette generator →