#383FB1#383FB1

#383FB1 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.7% C 0.178 H 273.7°. Best body text is #FFFFFF at 8.35:1 contrast (WCAG AA passes).

Color values

HEX	#383FB1
RGB	rgb(56, 63, 177)
HSL	hsl(237, 52%, 46%)
HSV	hsv(237, 68%, 69%)
CMYK	cmyk(68.4%, 64.4%, 0%, 30.6%)
CIE-LAB	lab(33.07, 34.66, -61.50)
CIE-LCH	lch(33.07, 70.60, 299.40°)
OKLab	oklab(43.71% 0.0114 -0.1775)
OKLCH	oklch(43.71% 0.178 273.7)
XYZ	xyz(11.3416, 7.5690, 42.4497)
Luminance	0.0757 (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

#383FB1 #B1AA38

analogous

#387BB1 #383FB1 #6D38B1

triadic

#383FB1 #B1383F #3FB138

tetradic

#383FB1 #B1387B #B1AA38 #38B16D

square

#383FB1 #B1387B #B1AA38 #38B16D

split-complementary

#383FB1 #B16D38 #7BB138

monochromatic

#1B1E54 #292E83 #383FB1 #5B62CB #8A8EDA

Accessibility & contrast

On white

8.35

#383FB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#383FB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #383FB1

8.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##383FB1	#FFFFFF	#000000	##FFFFFF
##383FB1	1.00	8.35	2.51	8.35
#FFFFFF	8.35	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B5

Deuteranopia (green-blind)

#0048AF

Tritanopia (blue-blind)

#005C72

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #383fb1;
/* rgb */ color: rgb(56, 63, 177);
/* oklch */ color: oklch(43.7% 0.178 273.7);

Tailwind

colors: {
  custom: {
    50: '#7e74c9',
    500: '#383fb1',
    950: '#000000',
  },
}

SCSS

$custom: #383fb1;
$custom-light: #7e74c9;
$custom-dark: #000000;

JSON

{
  "hex": "#383fb1",
  "rgb": {
    "r": 56,
    "g": 63,
    "b": 177
  },
  "hsl": {
    "h": 236.529,
    "s": 51.931,
    "l": 45.686
  },
  "oklch": {
    "l": 0.43706,
    "c": 0.17787,
    "h": 273.7
  },
  "luminance": 0.0757
}

Semantic roles & 50–950 ramp

primary

#383FB1

secondary

#C4C081

accent

#D34CDB

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #383FB1

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

Preview Lab → · Contrast checker → · Palette generator →