#3D378F#3D378F

#3D378F is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.7% C 0.141 H 280.9°. Best body text is #FFFFFF at 9.81:1 contrast (WCAG AA passes).

Color values

HEX	#3D378F
RGB	rgb(61, 55, 143)
HSL	hsl(244, 44%, 39%)
HSV	hsv(244, 62%, 56%)
CMYK	cmyk(57.3%, 61.5%, 0%, 43.9%)
CIE-LAB	lab(28.66, 28.85, -48.10)
CIE-LCH	lch(28.66, 56.09, 300.95°)
OKLab	oklab(39.69% 0.0266 -0.138)
OKLCH	oklch(39.69% 0.141 280.9)
XYZ	xyz(8.2470, 5.7071, 26.6483)
Luminance	0.0571 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D378F #898F37

analogous

#375D8F #3D378F #69378F

triadic

#3D378F #8F3D37 #378F3D

tetradic

#3D378F #8F375D #898F37 #378F69

square

#3D378F #8F375D #898F37 #378F69

split-complementary

#3D378F #8F6937 #5D8F37

monochromatic

#171537 #2A2663 #3D378F #514AB9 #7C76CA

Accessibility & contrast

On white

9.81

#3D378F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#3D378F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3D378F

9.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D378F	#FFFFFF	#000000	##FFFFFF
##3D378F	1.00	9.81	2.14	9.81
#FFFFFF	9.81	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004792

Deuteranopia (green-blind)

#00408D

Tritanopia (blue-blind)

#134C5D

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3d378f;
/* rgb */ color: rgb(61, 55, 143);
/* oklch */ color: oklch(39.7% 0.141 280.9);

Tailwind

colors: {
  custom: {
    50: '#7b6eb0',
    500: '#3d378f',
    950: '#000000',
  },
}

SCSS

$custom: #3d378f;
$custom-light: #7b6eb0;
$custom-dark: #000000;

JSON

{
  "hex": "#3d378f",
  "rgb": {
    "r": 61,
    "g": 55,
    "b": 143
  },
  "hsl": {
    "h": 244.091,
    "s": 44.444,
    "l": 38.824
  },
  "oklch": {
    "l": 0.39688,
    "c": 0.1406,
    "h": 280.9
  },
  "luminance": 0.05708
}

Semantic roles & 50–950 ramp

primary

#3D378F

secondary

#AEB36F

accent

#D454CB

background

#F7F6FA

surface

#EEECF5

border

#C9C7CF

text

#0A0711

muted

#7C7A80

Preview Lab

Preview with #3D378F

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

Preview Lab → · Contrast checker → · Palette generator →