#383DAB#383DAB

#383DAB is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.8% C 0.172 H 274.4°. Best body text is #FFFFFF at 8.66:1 contrast (WCAG AA passes).

Color values

HEX	#383DAB
RGB	rgb(56, 61, 171)
HSL	hsl(237, 51%, 45%)
HSV	hsv(237, 67%, 67%)
CMYK	cmyk(67.3%, 64.3%, 0%, 32.9%)
CIE-LAB	lab(32.07, 33.82, -59.55)
CIE-LCH	lch(32.07, 68.49, 299.59°)
OKLab	oklab(42.82% 0.0133 -0.1718)
OKLCH	oklch(42.82% 0.172 274.4)
XYZ	xyz(10.6479, 7.1176, 39.3329)
Luminance	0.0712 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#383DAB #ABA638

analogous

#3877AB #383DAB #6C38AB

triadic

#383DAB #AB383D #3DAB38

tetradic

#383DAB #AB3877 #ABA638 #38AB6C

square

#383DAB #AB3877 #ABA638 #38AB6C

split-complementary

#383DAB #AB6C38 #77AB38

monochromatic

#1A1C4F #292D7D #383DAB #585DC8 #868AD7

Accessibility & contrast

On white

8.66

#383DAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#383DAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #383DAB

8.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##383DAB	#FFFFFF	#000000	##FFFFFF
##383DAB	1.00	8.66	2.42	8.66
#FFFFFF	8.66	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051AF

Deuteranopia (green-blind)

#0046A9

Tritanopia (blue-blind)

#00596E

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #383dab;
/* rgb */ color: rgb(56, 61, 171);
/* oklch */ color: oklch(42.8% 0.172 274.4);

Tailwind

colors: {
  custom: {
    50: '#7d73c5',
    500: '#383dab',
    950: '#000000',
  },
}

SCSS

$custom: #383dab;
$custom-light: #7d73c5;
$custom-dark: #000000;

JSON

{
  "hex": "#383dab",
  "rgb": {
    "r": 56,
    "g": 61,
    "b": 171
  },
  "hsl": {
    "h": 237.391,
    "s": 50.661,
    "l": 44.51
  },
  "oklch": {
    "l": 0.42818,
    "c": 0.17232,
    "h": 274.4
  },
  "luminance": 0.07119
}

Semantic roles & 50–950 ramp

primary

#383DAB

secondary

#C1BE7D

accent

#D44EDA

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #383DAB

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

Preview Lab → · Contrast checker → · Palette generator →