#383D9B#383D9B

#383D9B is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.4% C 0.150 H 275.4°. Best body text is #FFFFFF at 9.09:1 contrast (WCAG AA passes).

Color values

HEX	#383D9B
RGB	rgb(56, 61, 155)
HSL	hsl(237, 47%, 41%)
HSV	hsv(237, 64%, 61%)
CMYK	cmyk(63.9%, 60.6%, 0%, 39.2%)
CIE-LAB	lab(30.75, 28.20, -52.07)
CIE-LCH	lch(30.75, 59.22, 298.44°)
OKLab	oklab(41.43% 0.0141 -0.1498)
OKLCH	oklch(41.43% 0.15 275.4)
XYZ	xyz(9.2141, 6.5440, 31.7816)
Luminance	0.0654 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#383D9B #9B9638

analogous

#386F9B #383D9B #65389B

triadic

#383D9B #9B383D #3D9B38

tetradic

#383D9B #9B386F #9B9638 #389B65

square

#383D9B #9B386F #9B9638 #389B65

split-complementary

#383D9B #9B6538 #6F9B38

monochromatic

#181A41 #282B6E #383D9B #5056C0 #7D81D0

Accessibility & contrast

On white

9.09

#383D9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#383D9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #383D9B

9.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##383D9B	#FFFFFF	#000000	##FFFFFF
##383D9B	1.00	9.09	2.31	9.09
#FFFFFF	9.09	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004D9E

Deuteranopia (green-blind)

#004499

Tritanopia (blue-blind)

#005466

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #383d9b;
/* rgb */ color: rgb(56, 61, 155);
/* oklch */ color: oklch(41.4% 0.150 275.4);

Tailwind

colors: {
  custom: {
    50: '#7a72b9',
    500: '#383d9b',
    950: '#000000',
  },
}

SCSS

$custom: #383d9b;
$custom-light: #7a72b9;
$custom-dark: #000000;

JSON

{
  "hex": "#383d9b",
  "rgb": {
    "r": 56,
    "g": 61,
    "b": 155
  },
  "hsl": {
    "h": 236.97,
    "s": 46.919,
    "l": 41.373
  },
  "oklch": {
    "l": 0.41428,
    "c": 0.15049,
    "h": 275.4
  },
  "luminance": 0.06545
}

Semantic roles & 50–950 ramp

primary

#383D9B

secondary

#B9B675

accent

#D051D7

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #383D9B

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

Preview Lab → · Contrast checker → · Palette generator →