#5591E4#5591E4

#5591E4 is a light, vivid cyan. Relative luminance 0.278; OKLCH L 65.4% C 0.140 H 256.9°. Best body text is #000000 at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#5591E4
RGB	rgb(85, 145, 228)
HSL	hsl(215, 73%, 61%)
HSV	hsv(215, 63%, 89%)
CMYK	cmyk(62.7%, 36.4%, 0%, 10.6%)
CIE-LAB	lab(59.69, 5.93, -47.90)
CIE-LCH	lch(59.69, 48.26, 277.05°)
OKLab	oklab(65.39% -0.0317 -0.1359)
OKLCH	oklch(65.39% 0.14 256.9)
XYZ	xyz(27.8703, 27.7809, 77.2772)
Luminance	0.2778 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5591E4 #E4A855

analogous

#55D9E4 #5591E4 #6155E4

triadic

#5591E4 #E45591 #91E455

tetradic

#5591E4 #E455D9 #E4A855 #55E461

square

#5591E4 #E455D9 #E4A855 #55E461

split-complementary

#5591E4 #E46155 #D9E455

monochromatic

#1A54A4 #236FD9 #5591E4 #8AB3EC #BFD5F5

Accessibility & contrast

On white

3.20

#5591E4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.56

#5591E4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5591E4

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5591E4	#FFFFFF	#000000	##000000
##5591E4	1.00	3.20	6.56	6.56
#FFFFFF	3.20	1.00	21.00	21.00
#000000	6.56	21.00	1.00	1.00
##000000	6.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D97E7

Deuteranopia (green-blind)

#598AE2

Tritanopia (blue-blind)

#00A4B0

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #5591e4;
/* rgb */ color: rgb(85, 145, 228);
/* oklch */ color: oklch(65.4% 0.140 256.9);

Tailwind

colors: {
  custom: {
    50: '#91b0ed',
    500: '#5591e4',
    950: '#000000',
  },
}

SCSS

$custom: #5591e4;
$custom-light: #91b0ed;
$custom-dark: #000000;

JSON

{
  "hex": "#5591e4",
  "rgb": {
    "r": 85,
    "g": 145,
    "b": 228
  },
  "hsl": {
    "h": 214.825,
    "s": 72.589,
    "l": 61.373
  },
  "oklch": {
    "l": 0.6539,
    "c": 0.13958,
    "h": 256.9
  },
  "luminance": 0.27784
}

Semantic roles & 50–950 ramp

primary

#5591E4

secondary

#E5CFB0

accent

#8211D5

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #5591E4

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

Preview Lab → · Contrast checker → · Palette generator →