#3D428F#3D428F

#3D428F is a dark, vivid blue. Relative luminance 0.069; OKLCH L 41.8% C 0.125 H 276.7°. Best body text is #FFFFFF at 8.84:1 contrast (WCAG AA passes).

Color values

HEX	#3D428F
RGB	rgb(61, 66, 143)
HSL	hsl(236, 40%, 40%)
HSV	hsv(236, 57%, 56%)
CMYK	cmyk(57.3%, 53.8%, 0%, 43.9%)
CIE-LAB	lab(31.51, 21.65, -43.49)
CIE-LCH	lch(31.51, 48.58, 296.47°)
OKLab	oklab(41.81% 0.0147 -0.1244)
OKLCH	oklch(41.81% 0.125 276.7)
XYZ	xyz(8.8290, 6.8711, 26.8423)
Luminance	0.0687 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D428F #8F8A3D

analogous

#3D6B8F #3D428F #613D8F

triadic

#3D428F #8F3D42 #428F3D

tetradic

#3D428F #8F3D6B #8F8A3D #3D8F61

square

#3D428F #8F3D6B #8F8A3D #3D8F61

split-complementary

#3D428F #8F613D #6B8F3D

monochromatic

#181A39 #2B2E64 #3D428F #5359B6 #7E83C8

Accessibility & contrast

On white

8.84

#3D428F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#3D428F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3D428F

8.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D428F	#FFFFFF	#000000	##FFFFFF
##3D428F	1.00	8.84	2.37	8.84
#FFFFFF	8.84	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#164E92

Deuteranopia (green-blind)

#05478D

Tritanopia (blue-blind)

#105462

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3d428f;
/* rgb */ color: rgb(61, 66, 143);
/* oklch */ color: oklch(41.8% 0.125 276.7);

Tailwind

colors: {
  custom: {
    50: '#7a76b0',
    500: '#3d428f',
    950: '#000000',
  },
}

SCSS

$custom: #3d428f;
$custom-light: #7a76b0;
$custom-dark: #000000;

JSON

{
  "hex": "#3d428f",
  "rgb": {
    "r": 61,
    "g": 66,
    "b": 143
  },
  "hsl": {
    "h": 236.341,
    "s": 40.196,
    "l": 40
  },
  "oklch": {
    "l": 0.41806,
    "c": 0.12526,
    "h": 276.7
  },
  "luminance": 0.06872
}

Semantic roles & 50–950 ramp

primary

#3D428F

secondary

#B2AE76

accent

#C958D0

background

#F7F7FA

surface

#EEEDF5

border

#C9C8CF

text

#0A0810

muted

#7C7B7F

Preview Lab

Preview with #3D428F

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

Preview Lab → · Contrast checker → · Palette generator →