#387BCB#387BCB

#387BCB is a mid, vivid cyan. Relative luminance 0.193; OKLCH L 57.9% C 0.141 H 254.6°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#387BCB
RGB	rgb(56, 123, 203)
HSL	hsl(213, 59%, 51%)
HSV	hsv(213, 72%, 80%)
CMYK	cmyk(72.4%, 39.4%, 0%, 20.4%)
CIE-LAB	lab(51.06, 5.81, -47.61)
CIE-LCH	lch(51.06, 47.97, 276.96°)
OKLab	oklab(57.93% -0.0373 -0.1358)
OKLCH	oklch(57.93% 0.141 254.6)
XYZ	xyz(19.4894, 19.3163, 59.1896)
Luminance	0.1932 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#387BCB #CB8838

analogous

#38C5CB #387BCB #3E38CB

triadic

#387BCB #CB387B #7BCB38

tetradic

#387BCB #CB38C5 #CB8838 #38CB3E

square

#387BCB #CB38C5 #CB8838 #38CB3E

split-complementary

#387BCB #CB3E38 #C5CB38

monochromatic

#1C416C #295E9D #387BCB #699BD8 #99BBE4

Accessibility & contrast

On white

4.32

#387BCB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.86

#387BCB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #387BCB

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##387BCB	#FFFFFF	#000000	##000000
##387BCB	1.00	4.32	4.86	4.86
#FFFFFF	4.32	1.00	21.00	21.00
#000000	4.86	21.00	1.00	1.00
##000000	4.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5681CE

Deuteranopia (green-blind)

#3E73C9

Tritanopia (blue-blind)

#008E99

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #387bcb;
/* rgb */ color: rgb(56, 123, 203);
/* oklch */ color: oklch(57.9% 0.141 254.6);

Tailwind

colors: {
  custom: {
    50: '#81a0db',
    500: '#387bcb',
    950: '#000000',
  },
}

SCSS

$custom: #387bcb;
$custom-light: #81a0db;
$custom-dark: #000000;

JSON

{
  "hex": "#387bcb",
  "rgb": {
    "r": 56,
    "g": 123,
    "b": 203
  },
  "hsl": {
    "h": 212.653,
    "s": 58.566,
    "l": 50.784
  },
  "oklch": {
    "l": 0.57926,
    "c": 0.14085,
    "h": 254.6
  },
  "luminance": 0.19318
}

Semantic roles & 50–950 ramp

primary

#387BCB

secondary

#D0B28F

accent

#9B46E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #387BCB

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

Preview Lab → · Contrast checker → · Palette generator →