#3D378E#3D378E

#3D378E is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.6% C 0.139 H 281.0°. Best body text is #FFFFFF at 9.83:1 contrast (WCAG AA passes).

Color values

HEX	#3D378E
RGB	rgb(61, 55, 142)
HSL	hsl(244, 44%, 39%)
HSV	hsv(244, 61%, 56%)
CMYK	cmyk(57%, 61.3%, 0%, 44.3%)
CIE-LAB	lab(28.58, 28.51, -47.61)
CIE-LCH	lch(28.58, 55.50, 300.92°)
OKLab	oklab(39.61% 0.0267 -0.1366)
OKLCH	oklch(39.61% 0.139 281)
XYZ	xyz(8.1716, 5.6770, 26.2511)
Luminance	0.0568 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D378E #888E37

analogous

#375C8E #3D378E #68378E

triadic

#3D378E #8E3D37 #378E3D

tetradic

#3D378E #8E375C #888E37 #378E68

square

#3D378E #8E375C #888E37 #378E68

split-complementary

#3D378E #8E6837 #5C8E37

monochromatic

#171536 #2A2662 #3D378E #5149B9 #7B76CA

Accessibility & contrast

On white

9.83

#3D378E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#3D378E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3D378E

9.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D378E	#FFFFFF	#000000	##FFFFFF
##3D378E	1.00	9.83	2.14	9.83
#FFFFFF	9.83	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004791

Deuteranopia (green-blind)

#00408C

Tritanopia (blue-blind)

#154C5D

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #3d378e;
/* rgb */ color: rgb(61, 55, 142);
/* oklch */ color: oklch(39.6% 0.139 281.0);

Tailwind

colors: {
  custom: {
    50: '#7a6eb0',
    500: '#3d378e',
    950: '#000000',
  },
}

SCSS

$custom: #3d378e;
$custom-light: #7a6eb0;
$custom-dark: #000000;

JSON

{
  "hex": "#3d378e",
  "rgb": {
    "r": 61,
    "g": 55,
    "b": 142
  },
  "hsl": {
    "h": 244.138,
    "s": 44.162,
    "l": 38.627
  },
  "oklch": {
    "l": 0.39605,
    "c": 0.1392,
    "h": 281
  },
  "luminance": 0.05677
}

Semantic roles & 50–950 ramp

primary

#3D378E

secondary

#AEB36E

accent

#D454CB

background

#F7F6FA

surface

#EEECF5

border

#C9C7CF

text

#0A0710

muted

#7C7A7F

Preview Lab

Preview with #3D378E

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

Preview Lab → · Contrast checker → · Palette generator →