#3588CB#3588CB

#3588CB is a mid, vivid cyan. Relative luminance 0.227; OKLCH L 60.8% C 0.129 H 246.6°. Best body text is #000000 at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#3588CB
RGB	rgb(53, 136, 203)
HSL	hsl(207, 59%, 50%)
HSV	hsv(207, 74%, 80%)
CMYK	cmyk(73.9%, 33%, 0%, 20.4%)
CIE-LAB	lab(54.74, -2.39, -41.79)
CIE-LCH	lch(54.74, 41.86, 266.72°)
OKLab	oklab(60.78% -0.0512 -0.1186)
OKLCH	oklch(60.78% 0.129 246.6)
XYZ	xyz(21.0477, 22.6746, 59.7557)
Luminance	0.2268 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3588CB #CB7835

analogous

#35CBC3 #3588CB #353DCB

triadic

#3588CB #CB3588 #88CB35

tetradic

#3588CB #C335CB #CB7835 #3DCB35

square

#3588CB #C335CB #CB7835 #3DCB35

split-complementary

#3588CB #CB353D #CBC335

monochromatic

#1B476A #28689B #3588CB #66A5D8 #96C1E4

Accessibility & contrast

On white

3.79

#3588CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.54

#3588CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3588CB

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3588CB	#FFFFFF	#000000	##000000
##3588CB	1.00	3.79	5.54	5.54
#FFFFFF	3.79	1.00	21.00	21.00
#000000	5.54	21.00	1.00	1.00
##000000	5.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#698BCE

Deuteranopia (green-blind)

#547DCA

Tritanopia (blue-blind)

#0098A0

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #3588cb;
/* rgb */ color: rgb(53, 136, 203);
/* oklch */ color: oklch(60.8% 0.129 246.6);

Tailwind

colors: {
  custom: {
    50: '#80aadb',
    500: '#3588cb',
    950: '#000000',
  },
}

SCSS

$custom: #3588cb;
$custom-light: #80aadb;
$custom-dark: #000000;

JSON

{
  "hex": "#3588cb",
  "rgb": {
    "r": 53,
    "g": 136,
    "b": 203
  },
  "hsl": {
    "h": 206.8,
    "s": 59.055,
    "l": 50.196
  },
  "oklch": {
    "l": 0.60784,
    "c": 0.12919,
    "h": 246.6
  },
  "luminance": 0.22677
}

Semantic roles & 50–950 ramp

primary

#3588CB

secondary

#CFAA8C

accent

#8C46E2

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3588CB

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

Preview Lab → · Contrast checker → · Palette generator →