#3D428C#3D428C

#3D428C is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.6% C 0.121 H 276.9°. Best body text is #FFFFFF at 8.91:1 contrast (WCAG AA passes).

Color values

HEX	#3D428C
RGB	rgb(61, 66, 140)
HSL	hsl(236, 39%, 39%)
HSV	hsv(236, 56%, 55%)
CMYK	cmyk(56.4%, 52.9%, 0%, 45.1%)
CIE-LAB	lab(31.30, 20.61, -41.98)
CIE-LCH	lch(31.30, 46.77, 296.15°)
OKLab	oklab(41.58% 0.0145 -0.12)
OKLCH	oklch(41.58% 0.121 276.9)
XYZ	xyz(8.6048, 6.7814, 25.6614)
Luminance	0.0678 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D428C #8C873D

analogous

#3D698C #3D428C #603D8C

triadic

#3D428C #8C3D42 #428C3D

tetradic

#3D428C #8C3D69 #8C873D #3D8C60

square

#3D428C #8C3D69 #8C873D #3D8C60

split-complementary

#3D428C #8C603D #698C3D

monochromatic

#181A37 #2A2E61 #3D428C #5259B4 #7D82C6

Accessibility & contrast

On white

8.91

#3D428C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#3D428C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3D428C

8.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D428C	#FFFFFF	#000000	##FFFFFF
##3D428C	1.00	8.91	2.36	8.91
#FFFFFF	8.91	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B4D8F

Deuteranopia (green-blind)

#0E478A

Tritanopia (blue-blind)

#155360

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3d428c;
/* rgb */ color: rgb(61, 66, 140);
/* oklch */ color: oklch(41.6% 0.121 276.9);

Tailwind

colors: {
  custom: {
    50: '#7976ae',
    500: '#3d428c',
    950: '#000000',
  },
}

SCSS

$custom: #3d428c;
$custom-light: #7976ae;
$custom-dark: #000000;

JSON

{
  "hex": "#3d428c",
  "rgb": {
    "r": 61,
    "g": 66,
    "b": 140
  },
  "hsl": {
    "h": 236.203,
    "s": 39.303,
    "l": 39.412
  },
  "oklch": {
    "l": 0.41584,
    "c": 0.12083,
    "h": 276.9
  },
  "luminance": 0.06782
}

Semantic roles & 50–950 ramp

primary

#3D428C

secondary

#B0AC75

accent

#C859CF

background

#F7F7FA

surface

#EEEDF4

border

#C9C8CE

text

#0A0810

muted

#7C7B7F

Preview Lab

Preview with #3D428C

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

Preview Lab → · Contrast checker → · Palette generator →