#383D99#383D99

#383D99 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.3% C 0.148 H 275.5°. Best body text is #FFFFFF at 9.15:1 contrast (WCAG AA passes).

Color values

HEX	#383D99
RGB	rgb(56, 61, 153)
HSL	hsl(237, 46%, 41%)
HSV	hsv(237, 63%, 60%)
CMYK	cmyk(63.4%, 60.1%, 0%, 40%)
CIE-LAB	lab(30.59, 27.49, -51.12)
CIE-LCH	lch(30.59, 58.04, 298.27°)
OKLab	oklab(41.26% 0.0141 -0.147)
OKLCH	oklch(41.26% 0.148 275.5)
XYZ	xyz(9.0475, 6.4774, 30.9043)
Luminance	0.0648 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#383D99 #999438

analogous

#386D99 #383D99 #633899

triadic

#383D99 #99383D #3D9938

tetradic

#383D99 #99386D #999438 #389963

square

#383D99 #99386D #999438 #389963

split-complementary

#383D99 #996338 #6D9938

monochromatic

#17193F #282B6C #383D99 #4F55BF #7C81CF

Accessibility & contrast

On white

9.15

#383D99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#383D99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #383D99

9.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##383D99	#FFFFFF	#000000	##FFFFFF
##383D99	1.00	9.15	2.30	9.15
#FFFFFF	9.15	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C9C

Deuteranopia (green-blind)

#004497

Tritanopia (blue-blind)

#005365

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #383d99;
/* rgb */ color: rgb(56, 61, 153);
/* oklch */ color: oklch(41.3% 0.148 275.5);

Tailwind

colors: {
  custom: {
    50: '#7972b8',
    500: '#383d99',
    950: '#000000',
  },
}

SCSS

$custom: #383d99;
$custom-light: #7972b8;
$custom-dark: #000000;

JSON

{
  "hex": "#383d99",
  "rgb": {
    "r": 56,
    "g": 61,
    "b": 153
  },
  "hsl": {
    "h": 236.907,
    "s": 46.411,
    "l": 40.98
  },
  "oklch": {
    "l": 0.4126,
    "c": 0.14769,
    "h": 275.5
  },
  "luminance": 0.06478
}

Semantic roles & 50–950 ramp

primary

#383D99

secondary

#B8B574

accent

#CF52D6

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0811

muted

#7C7B80

Preview Lab

Preview with #383D99

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

Preview Lab → · Contrast checker → · Palette generator →