#388EE3#388EE3

#388EE3 is a light, vivid cyan. Relative luminance 0.257; OKLCH L 63.6% C 0.152 H 251.3°. Best body text is #000000 at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#388EE3
RGB	rgb(56, 142, 227)
HSL	hsl(210, 75%, 55%)
HSV	hsv(210, 75%, 89%)
CMYK	cmyk(75.3%, 37.4%, 0%, 11%)
CIE-LAB	lab(57.78, 3.04, -50.44)
CIE-LCH	lch(57.78, 50.53, 273.45°)
OKLab	oklab(63.6% -0.0486 -0.1438)
OKLCH	oklch(63.6% 0.152 251.3)
XYZ	xyz(25.1638, 25.7299, 76.2983)
Luminance	0.2573 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#388EE3 #E38D38

analogous

#38E3E3 #388EE3 #3838E3

triadic

#388EE3 #E3388E #8EE338

tetradic

#388EE3 #E338E3 #E38D38 #38E338

square

#388EE3 #E338E3 #E38D38 #38E338

split-complementary

#388EE3 #E33838 #E3E338

monochromatic

#14518D #1B6FC2 #388EE3 #6EACEB #A3CBF2

Accessibility & contrast

On white

3.42

#388EE3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.15

#388EE3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #388EE3

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##388EE3	#FFFFFF	#000000	##000000
##388EE3	1.00	3.42	6.15	6.15
#FFFFFF	3.42	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)

#6693E6

Deuteranopia (green-blind)

#4C84E1

Tritanopia (blue-blind)

#00A2AE

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #388ee3;
/* rgb */ color: rgb(56, 142, 227);
/* oklch */ color: oklch(63.6% 0.152 251.3);

Tailwind

colors: {
  custom: {
    50: '#85aeec',
    500: '#388ee3',
    950: '#000000',
  },
}

SCSS

$custom: #388ee3;
$custom-light: #85aeec;
$custom-dark: #000000;

JSON

{
  "hex": "#388ee3",
  "rgb": {
    "r": 56,
    "g": 142,
    "b": 227
  },
  "hsl": {
    "h": 209.825,
    "s": 75.33,
    "l": 55.49
  },
  "oklch": {
    "l": 0.63598,
    "c": 0.15178,
    "h": 251.3
  },
  "luminance": 0.25733
}

Semantic roles & 50–950 ramp

primary

#388EE3

secondary

#DFBB98

accent

#9336F2

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #388EE3

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

Preview Lab → · Contrast checker → · Palette generator →