#5591EE#5591EE

#5591EE is a light, vivid blue. Relative luminance 0.284; OKLCH L 66.0% C 0.153 H 258.9°. Best body text is #000000 at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#5591EE
RGB	rgb(85, 145, 238)
HSL	hsl(216, 82%, 63%)
HSV	hsv(216, 64%, 93%)
CMYK	cmyk(64.3%, 39.1%, 0%, 6.7%)
CIE-LAB	lab(60.21, 9.29, -52.62)
CIE-LCH	lch(60.21, 53.43, 280.01°)
OKLab	oklab(65.96% -0.0294 -0.1498)
OKLCH	oklch(65.96% 0.153 258.9)
XYZ	xyz(29.2988, 28.3523, 84.8008)
Luminance	0.2836 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5591EE #EEB255

analogous

#55DDEE #5591EE #6555EE

triadic

#5591EE #EE5591 #91EE55

tetradic

#5591EE #EE55DD #EEB255 #55EE65

square

#5591EE #EE55DD #EEB255 #55EE65

split-complementary

#5591EE #EE6555 #DDEE55

monochromatic

#1253B6 #1D6DE8 #5591EE #8DB5F4 #C4D9F9

Accessibility & contrast

On white

3.15

#5591EE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.67

#5591EE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5591EE

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5591EE	#FFFFFF	#000000	##000000
##5591EE	1.00	3.15	6.67	6.67
#FFFFFF	3.15	1.00	21.00	21.00
#000000	6.67	21.00	1.00	1.00
##000000	6.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6799F2

Deuteranopia (green-blind)

#518BEC

Tritanopia (blue-blind)

#00A6B4

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #5591ee;
/* rgb */ color: rgb(85, 145, 238);
/* oklch */ color: oklch(66.0% 0.153 258.9);

Tailwind

colors: {
  custom: {
    50: '#93b0f4',
    500: '#5591ee',
    950: '#000000',
  },
}

SCSS

$custom: #5591ee;
$custom-light: #93b0f4;
$custom-dark: #000000;

JSON

{
  "hex": "#5591ee",
  "rgb": {
    "r": 85,
    "g": 145,
    "b": 238
  },
  "hsl": {
    "h": 216.471,
    "s": 81.818,
    "l": 63.333
  },
  "oklch": {
    "l": 0.65959,
    "c": 0.15262,
    "h": 258.9
  },
  "luminance": 0.28355
}

Semantic roles & 50–950 ramp

primary

#5591EE

secondary

#EBD5B4

accent

#8A07DE

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #5591EE

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

Preview Lab → · Contrast checker → · Palette generator →