#387CB3#387CB3

#387CB3 is a mid, moderate cyan. Relative luminance 0.185; OKLCH L 56.8% C 0.110 H 245.9°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#387CB3
RGB	rgb(56, 124, 179)
HSL	hsl(207, 52%, 46%)
HSV	hsv(207, 69%, 70%)
CMYK	cmyk(68.7%, 30.7%, 0%, 29.8%)
CIE-LAB	lab(50.11, -3.39, -35.35)
CIE-LCH	lch(50.11, 35.51, 264.52°)
OKLab	oklab(56.78% -0.0448 -0.0999)
OKLCH	oklch(56.78% 0.11 245.9)
XYZ	xyz(16.9721, 18.5089, 45.3172)
Luminance	0.1851 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#387CB3 #B36F38

analogous

#38B3AC #387CB3 #383FB3

triadic

#387CB3 #B3387C #7CB338

tetradic

#387CB3 #AC38B3 #B36F38 #3FB338

square

#387CB3 #AC38B3 #B36F38 #3FB338

split-complementary

#387CB3 #B3383F #B3AC38

monochromatic

#1B3B56 #295C84 #387CB3 #5C9ACC #8BB7DB

Accessibility & contrast

On white

4.47

#387CB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#387CB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #387CB3

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##387CB3	#FFFFFF	#000000	##000000
##387CB3	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#637EB5

Deuteranopia (green-blind)

#5272B2

Tritanopia (blue-blind)

#00898F

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #387cb3;
/* rgb */ color: rgb(56, 124, 179);
/* oklch */ color: oklch(56.8% 0.110 245.9);

Tailwind

colors: {
  custom: {
    50: '#7ca1ca',
    500: '#387cb3',
    950: '#000000',
  },
}

SCSS

$custom: #387cb3;
$custom-light: #7ca1ca;
$custom-dark: #000000;

JSON

{
  "hex": "#387cb3",
  "rgb": {
    "r": 56,
    "g": 124,
    "b": 179
  },
  "hsl": {
    "h": 206.829,
    "s": 52.34,
    "l": 46.078
  },
  "oklch": {
    "l": 0.56778,
    "c": 0.10951,
    "h": 245.9
  },
  "luminance": 0.18511
}

Semantic roles & 50–950 ramp

primary

#387CB3

secondary

#C5A082

accent

#8C4CDC

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0F13

muted

#7C7E82

Preview Lab

Preview with #387CB3

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

Preview Lab → · Contrast checker → · Palette generator →