#387DB3#387DB3

#387DB3 is a mid, moderate cyan. Relative luminance 0.188; OKLCH L 57.0% C 0.109 H 245.1°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#387DB3
RGB	rgb(56, 125, 179)
HSL	hsl(206, 52%, 46%)
HSV	hsv(206, 69%, 70%)
CMYK	cmyk(68.7%, 30.2%, 0%, 29.8%)
CIE-LAB	lab(50.41, -3.98, -34.88)
CIE-LCH	lch(50.41, 35.10, 263.49°)
OKLab	oklab(57.01% -0.0458 -0.0986)
OKLCH	oklch(57.01% 0.109 245.1)
XYZ	xyz(17.0981, 18.7608, 45.3592)
Luminance	0.1876 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#387DB3 #B36E38

analogous

#38B3AB #387DB3 #3840B3

triadic

#387DB3 #B3387D #7DB338

tetradic

#387DB3 #AB38B3 #B36E38 #40B338

square

#387DB3 #AB38B3 #B36E38 #40B338

split-complementary

#387DB3 #B33840 #B3AB38

monochromatic

#1B3C56 #295C84 #387DB3 #5C9BCC #8BB8DB

Accessibility & contrast

On white

4.42

#387DB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#387DB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #387DB3

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##387DB3	#FFFFFF	#000000	##000000
##387DB3	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#657FB5

Deuteranopia (green-blind)

#5473B2

Tritanopia (blue-blind)

#008A90

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #387db3;
/* rgb */ color: rgb(56, 125, 179);
/* oklch */ color: oklch(57.0% 0.109 245.1);

Tailwind

colors: {
  custom: {
    50: '#7da2ca',
    500: '#387db3',
    950: '#000000',
  },
}

SCSS

$custom: #387db3;
$custom-light: #7da2ca;
$custom-dark: #000000;

JSON

{
  "hex": "#387db3",
  "rgb": {
    "r": 56,
    "g": 125,
    "b": 179
  },
  "hsl": {
    "h": 206.341,
    "s": 52.34,
    "l": 46.078
  },
  "oklch": {
    "l": 0.57014,
    "c": 0.10868,
    "h": 245.1
  },
  "luminance": 0.18763
}

Semantic roles & 50–950 ramp

primary

#387DB3

secondary

#C59F82

accent

#8B4CDC

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0F13

muted

#7C7E82

Preview Lab

Preview with #387DB3

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

Preview Lab → · Contrast checker → · Palette generator →