#5588EF#5588EF

#5588EF is a light, vivid blue. Relative luminance 0.258; OKLCH L 64.1% C 0.164 H 262.8°. Best body text is #000000 at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#5588EF
RGB	rgb(85, 136, 239)
HSL	hsl(220, 83%, 64%)
HSV	hsv(220, 64%, 94%)
CMYK	cmyk(64.4%, 43.1%, 0%, 6.3%)
CIE-LAB	lab(57.82, 15.01, -56.98)
CIE-LCH	lch(57.82, 58.93, 284.76°)
OKLab	oklab(64.13% -0.0205 -0.1627)
OKLCH	oklch(64.13% 0.164 262.8)
XYZ	xyz(28.1250, 25.7689, 85.1363)
Luminance	0.2577 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5588EF #EFBC55

analogous

#55D5EF #5588EF #6F55EF

triadic

#5588EF #EF5588 #88EF55

tetradic

#5588EF #EF55D5 #EFBC55 #55EF6F

square

#5588EF #EF55D5 #EFBC55 #55EF6F

split-complementary

#5588EF #EF6F55 #D5EF55

monochromatic

#1149B8 #1D61EA #5588EF #8DAFF4 #C5D6FA

Accessibility & contrast

On white

3.41

#5588EF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.15

#5588EF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5588EF

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5588EF	#FFFFFF	#000000	##000000
##5588EF	1.00	3.41	6.15	6.15
#FFFFFF	3.41	1.00	21.00	21.00
#000000	6.15	21.00	1.00	1.00
##000000	6.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5793F3

Deuteranopia (green-blind)

#3E84ED

Tritanopia (blue-blind)

#00A0B0

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #5588ef;
/* rgb */ color: rgb(85, 136, 239);
/* oklch */ color: oklch(64.1% 0.164 262.8);

Tailwind

colors: {
  custom: {
    50: '#93aaf5',
    500: '#5588ef',
    950: '#000000',
  },
}

SCSS

$custom: #5588ef;
$custom-light: #93aaf5;
$custom-dark: #000000;

JSON

{
  "hex": "#5588ef",
  "rgb": {
    "r": 85,
    "g": 136,
    "b": 239
  },
  "hsl": {
    "h": 220.13,
    "s": 82.796,
    "l": 63.529
  },
  "oklch": {
    "l": 0.6413,
    "c": 0.16397,
    "h": 262.8
  },
  "luminance": 0.25772
}

Semantic roles & 50–950 ramp

primary

#5588EF

secondary

#EBD9B5

accent

#9706DF

background

#F9FAFF

surface

#F2F4FE

border

#CCCED6

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #5588EF

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

Preview Lab → · Contrast checker → · Palette generator →