#381B8F#381B8F

#381B8F is a dark, vivid violet. Relative luminance 0.036; OKLCH L 35.0% C 0.174 H 284.4°. Best body text is #FFFFFF at 12.20:1 contrast (WCAG AA passes).

Color values

HEX	#381B8F
RGB	rgb(56, 27, 143)
HSL	hsl(255, 68%, 33%)
HSV	hsv(255, 81%, 56%)
CMYK	cmyk(60.8%, 81.1%, 0%, 43.9%)
CIE-LAB	lab(22.33, 44.17, -58.49)
CIE-LCH	lch(22.33, 73.29, 307.06°)
OKLab	oklab(35.04% 0.0432 -0.1686)
OKLCH	oklch(35.04% 0.174 284.4)
XYZ	xyz(6.9792, 3.6073, 26.3098)
Luminance	0.0361 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#381B8F #728F1B

analogous

#1B388F #381B8F #721B8F

triadic

#381B8F #8F381B #1B8F38

tetradic

#381B8F #8F1B38 #728F1B #1B8F72

square

#381B8F #8F1B38 #728F1B #1B8F72

split-complementary

#381B8F #8F721B #388F1B

monochromatic

#100828 #24115C #381B8F #4C25C2 #6D48DC

Accessibility & contrast

On white

12.20

#381B8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#381B8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #381B8F

12.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##381B8F	#FFFFFF	#000000	##FFFFFF
##381B8F	1.00	12.20	1.72	12.20
#FFFFFF	12.20	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003992

Deuteranopia (green-blind)

#00328D

Tritanopia (blue-blind)

#003E55

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #381b8f;
/* rgb */ color: rgb(56, 27, 143);
/* oklch */ color: oklch(35.0% 0.174 284.4);

Tailwind

colors: {
  custom: {
    50: '#7a5cb1',
    500: '#381b8f',
    950: '#000000',
  },
}

SCSS

$custom: #381b8f;
$custom-light: #7a5cb1;
$custom-dark: #000000;

JSON

{
  "hex": "#381b8f",
  "rgb": {
    "r": 56,
    "g": 27,
    "b": 143
  },
  "hsl": {
    "h": 255,
    "s": 68.235,
    "l": 33.333
  },
  "oklch": {
    "l": 0.35038,
    "c": 0.17403,
    "h": 284.4
  },
  "luminance": 0.03608
}

Semantic roles & 50–950 ramp

primary

#381B8F

secondary

#A1BE48

accent

#EB3DBF

background

#F8F5FB

surface

#EFE9F6

border

#CAC5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #381B8F

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

Preview Lab → · Contrast checker → · Palette generator →