#387BBB#387BBB

#387BBB is a mid, vivid cyan. Relative luminance 0.186; OKLCH L 57.0% C 0.120 H 249.9°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#387BBB
RGB	rgb(56, 123, 187)
HSL	hsl(209, 54%, 48%)
HSV	hsv(209, 70%, 73%)
CMYK	cmyk(70.1%, 34.2%, 0%, 26.7%)
CIE-LAB	lab(50.21, 0.05, -39.80)
CIE-LCH	lch(50.21, 39.80, 270.07°)
OKLab	oklab(56.99% -0.0414 -0.1129)
OKLCH	oklch(56.99% 0.12 249.9)
XYZ	xyz(17.6801, 18.5926, 49.6610)
Luminance	0.1860 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#387BBB #BB7838

analogous

#38BBB9 #387BBB #383ABB

triadic

#387BBB #BB387B #7BBB38

tetradic

#387BBB #B938BB #BB7838 #3ABB38

square

#387BBB #B938BB #BB7838 #3ABB38

split-complementary

#387BBB #BB383A #BBB938

monochromatic

#1C3D5D #2A5C8C #387BBB #6199D0 #90B8DE

Accessibility & contrast

On white

4.45

#387BBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#387BBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #387BBB

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##387BBB	#FFFFFF	#000000	##000000
##387BBB	1.00	4.45	4.72	4.72
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.72	21.00	1.00	1.00
##000000	4.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E7EBE

Deuteranopia (green-blind)

#4C72BA

Tritanopia (blue-blind)

#008A92

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #387bbb;
/* rgb */ color: rgb(56, 123, 187);
/* oklch */ color: oklch(57.0% 0.120 249.9);

Tailwind

colors: {
  custom: {
    50: '#7ea0d0',
    500: '#387bbb',
    950: '#000000',
  },
}

SCSS

$custom: #387bbb;
$custom-light: #7ea0d0;
$custom-dark: #000000;

JSON

{
  "hex": "#387bbb",
  "rgb": {
    "r": 56,
    "g": 123,
    "b": 187
  },
  "hsl": {
    "h": 209.313,
    "s": 53.909,
    "l": 47.647
  },
  "oklch": {
    "l": 0.56986,
    "c": 0.12029,
    "h": 249.9
  },
  "luminance": 0.18595
}

Semantic roles & 50–950 ramp

primary

#387BBB

secondary

#C8A786

accent

#924BDD

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #387BBB

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

Preview Lab → · Contrast checker → · Palette generator →