#387CBC#387CBC

#387CBC is a mid, vivid cyan. Relative luminance 0.189; OKLCH L 57.3% C 0.121 H 249.6°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#387CBC
RGB	rgb(56, 124, 188)
HSL	hsl(209, 54%, 48%)
HSV	hsv(209, 70%, 74%)
CMYK	cmyk(70.2%, 34%, 0%, 26.3%)
CIE-LAB	lab(50.55, -0.20, -39.83)
CIE-LCH	lch(50.55, 39.83, 269.71°)
OKLab	oklab(57.27% -0.0421 -0.113)
OKLCH	oklch(57.27% 0.121 249.6)
XYZ	xyz(17.9122, 18.8850, 50.2684)
Luminance	0.1889 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#387CBC #BC7838

analogous

#38BCBA #387CBC #383ABC

triadic

#387CBC #BC387C #7CBC38

tetradic

#387CBC #BA38BC #BC7838 #3ABC38

square

#387CBC #BA38BC #BC7838 #3ABC38

split-complementary

#387CBC #BC383A #BCBA38

monochromatic

#1C3E5E #2A5D8D #387CBC #619AD0 #90B8DE

Accessibility & contrast

On white

4.40

#387CBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#387CBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #387CBC

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##387CBC	#FFFFFF	#000000	##000000
##387CBC	1.00	4.40	4.78	4.78
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F7FBF

Deuteranopia (green-blind)

#4D73BB

Tritanopia (blue-blind)

#008B93

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #387cbc;
/* rgb */ color: rgb(56, 124, 188);
/* oklch */ color: oklch(57.3% 0.121 249.6);

Tailwind

colors: {
  custom: {
    50: '#7ea1d0',
    500: '#387cbc',
    950: '#000000',
  },
}

SCSS

$custom: #387cbc;
$custom-light: #7ea1d0;
$custom-dark: #000000;

JSON

{
  "hex": "#387cbc",
  "rgb": {
    "r": 56,
    "g": 124,
    "b": 188
  },
  "hsl": {
    "h": 209.091,
    "s": 54.098,
    "l": 47.843
  },
  "oklch": {
    "l": 0.57274,
    "c": 0.12061,
    "h": 249.6
  },
  "luminance": 0.18887
}

Semantic roles & 50–950 ramp

primary

#387CBC

secondary

#C9A787

accent

#924ADD

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #387CBC

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

Preview Lab → · Contrast checker → · Palette generator →