#387FE3#387FE3

#387FE3 is a mid, vivid blue. Relative luminance 0.216; OKLCH L 60.3% C 0.168 H 257.6°. Best body text is #000000 at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#387FE3
RGB	rgb(56, 127, 227)
HSL	hsl(215, 75%, 55%)
HSV	hsv(215, 75%, 89%)
CMYK	cmyk(75.3%, 44.1%, 0%, 11%)
CIE-LAB	lab(53.56, 12.11, -57.17)
CIE-LCH	lch(53.56, 58.44, 281.96°)
OKLab	oklab(60.32% -0.0359 -0.1638)
OKLCH	oklch(60.32% 0.168 257.6)
XYZ	xyz(23.0803, 21.5629, 75.6038)
Luminance	0.2157 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#387FE3 #E39C38

analogous

#38D4E3 #387FE3 #4738E3

triadic

#387FE3 #E3387F #7FE338

tetradic

#387FE3 #E338D4 #E39C38 #38E347

square

#387FE3 #E338D4 #E39C38 #38E347

split-complementary

#387FE3 #E34738 #D4E338

monochromatic

#14468D #1B61C2 #387FE3 #6EA2EB #A3C4F2

Accessibility & contrast

On white

3.95

#387FE3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.31

#387FE3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #387FE3

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##387FE3	#FFFFFF	#000000	##000000
##387FE3	1.00	3.95	5.31	5.31
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.31	21.00	1.00	1.00
##000000	5.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C88E7

Deuteranopia (green-blind)

#2979E1

Tritanopia (blue-blind)

#0097A6

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #387fe3;
/* rgb */ color: rgb(56, 127, 227);
/* oklch */ color: oklch(60.3% 0.168 257.6);

Tailwind

colors: {
  custom: {
    50: '#85a3ec',
    500: '#387fe3',
    950: '#000000',
  },
}

SCSS

$custom: #387fe3;
$custom-light: #85a3ec;
$custom-dark: #000000;

JSON

{
  "hex": "#387fe3",
  "rgb": {
    "r": 56,
    "g": 127,
    "b": 227
  },
  "hsl": {
    "h": 215.088,
    "s": 75.33,
    "l": 55.49
  },
  "oklch": {
    "l": 0.60315,
    "c": 0.1677,
    "h": 257.6
  },
  "luminance": 0.21566
}

Semantic roles & 50–950 ramp

primary

#387FE3

secondary

#DFC198

accent

#A436F2

background

#F9FAFE

surface

#F1F3FD

border

#CBCDD5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #387FE3

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

Preview Lab → · Contrast checker → · Palette generator →