#383FB3#383FB3

#383FB3 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.9% C 0.181 H 273.6°. Best body text is #FFFFFF at 8.30:1 contrast (WCAG AA passes).

Color values

HEX	#383FB3
RGB	rgb(56, 63, 179)
HSL	hsl(237, 52%, 46%)
HSV	hsv(237, 69%, 70%)
CMYK	cmyk(68.7%, 64.8%, 0%, 29.8%)
CIE-LAB	lab(33.24, 35.35, -62.41)
CIE-LCH	lch(33.24, 71.73, 299.53°)
OKLab	oklab(43.89% 0.0112 -0.1802)
OKLCH	oklch(43.89% 0.181 273.6)
XYZ	xyz(11.5424, 7.6494, 43.5073)
Luminance	0.0765 (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

#383FB3 #B3AC38

analogous

#387CB3 #383FB3 #6E38B3

triadic

#383FB3 #B3383F #3FB338

tetradic

#383FB3 #B3387C #B3AC38 #38B36E

square

#383FB3 #B3387C #B3AC38 #38B36E

split-complementary

#383FB3 #B36E38 #7CB338

monochromatic

#1B1E56 #292F84 #383FB3 #5C63CC #8B8FDB

Accessibility & contrast

On white

8.30

#383FB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#383FB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #383FB3

8.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##383FB3	#FFFFFF	#000000	##FFFFFF
##383FB3	1.00	8.30	2.53	8.30
#FFFFFF	8.30	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B7

Deuteranopia (green-blind)

#0049B1

Tritanopia (blue-blind)

#005D73

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #383fb3;
/* rgb */ color: rgb(56, 63, 179);
/* oklch */ color: oklch(43.9% 0.181 273.6);

Tailwind

colors: {
  custom: {
    50: '#7f74cb',
    500: '#383fb3',
    950: '#000000',
  },
}

SCSS

$custom: #383fb3;
$custom-light: #7f74cb;
$custom-dark: #000000;

JSON

{
  "hex": "#383fb3",
  "rgb": {
    "r": 56,
    "g": 63,
    "b": 179
  },
  "hsl": {
    "h": 236.585,
    "s": 52.34,
    "l": 46.078
  },
  "oklch": {
    "l": 0.43886,
    "c": 0.18051,
    "h": 273.6
  },
  "luminance": 0.0765
}

Semantic roles & 50–950 ramp

primary

#383FB3

secondary

#C5C182

accent

#D44CDC

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #383FB3

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

Preview Lab → · Contrast checker → · Palette generator →