#381EBB#381EBB

#381EBB is a dark, highly saturated blue. Relative luminance 0.054; OKLCH L 40.2% C 0.222 H 277.1°. Best body text is #FFFFFF at 10.14:1 contrast (WCAG AA passes).

Color values

HEX	#381EBB
RGB	rgb(56, 30, 187)
HSL	hsl(250, 72%, 43%)
HSV	hsv(250, 84%, 73%)
CMYK	cmyk(70.1%, 84%, 0%, 26.7%)
CIE-LAB	lab(27.73, 55.64, -76.25)
CIE-LCH	lch(27.73, 94.39, 306.12°)
OKLab	oklab(40.21% 0.0276 -0.2203)
OKLCH	oklch(40.21% 0.222 277.1)
XYZ	xyz(11.0619, 5.3561, 47.4550)
Luminance	0.0536 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#381EBB #A1BB1E

analogous

#1E53BB #381EBB #861EBB

triadic

#381EBB #BB381E #1EBB38

tetradic

#381EBB #BB1E53 #A1BB1E #1EBB86

square

#381EBB #BB1E53 #A1BB1E #1EBB86

split-complementary

#381EBB #BB861E #53BB1E

monochromatic

#180D52 #281686 #381EBB #5337DF #806CE7

Accessibility & contrast

On white

10.14

#381EBB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#381EBB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #381EBB

10.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##381EBB	#FFFFFF	#000000	##FFFFFF
##381EBB	1.00	10.14	2.07	10.14
#FFFFFF	10.14	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048BF

Deuteranopia (green-blind)

#003BB8

Tritanopia (blue-blind)

#00516F

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #381ebb;
/* rgb */ color: rgb(56, 30, 187);
/* oklch */ color: oklch(40.2% 0.222 277.1);

Tailwind

colors: {
  custom: {
    50: '#8361d1',
    500: '#381ebb',
    950: '#000000',
  },
}

SCSS

$custom: #381ebb;
$custom-light: #8361d1;
$custom-dark: #000000;

JSON

{
  "hex": "#381ebb",
  "rgb": {
    "r": 56,
    "g": 30,
    "b": 187
  },
  "hsl": {
    "h": 249.936,
    "s": 72.35,
    "l": 42.549
  },
  "oklch": {
    "l": 0.40212,
    "c": 0.222,
    "h": 277.1
  },
  "luminance": 0.05357
}

Semantic roles & 50–950 ramp

primary

#381EBB

secondary

#BCCD67

accent

#EF39D1

background

#F8F5FD

surface

#F0EAFA

border

#CBC6D3

text

#0D0514

muted

#7D7983

Preview Lab

Preview with #381EBB

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

Preview Lab → · Contrast checker → · Palette generator →