#3D409B#3D409B

#3D409B is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.3% C 0.145 H 276.8°. Best body text is #FFFFFF at 8.73:1 contrast (WCAG AA passes).

Color values

HEX	#3D409B
RGB	rgb(61, 64, 155)
HSL	hsl(238, 44%, 42%)
HSV	hsv(238, 61%, 61%)
CMYK	cmyk(60.6%, 58.7%, 0%, 39.2%)
CIE-LAB	lab(31.86, 27.13, -50.24)
CIE-LCH	lch(31.86, 57.10, 298.37°)
OKLab	oklab(42.35% 0.0172 -0.1443)
OKLCH	oklch(42.35% 0.145 276.8)
XYZ	xyz(9.6724, 7.0247, 31.8502)
Luminance	0.0703 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D409B #9B983D

analogous

#3D6F9B #3D409B #693D9B

triadic

#3D409B #9B3D40 #409B3D

tetradic

#3D409B #9B3D6F #9B983D #3D9B69

square

#3D409B #9B3D6F #9B983D #3D9B69

split-complementary

#3D409B #9B693D #6F9B3D

monochromatic

#1A1C43 #2C2E6F #3D409B #585BBD #8486CF

Accessibility & contrast

On white

8.73

#3D409B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#3D409B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3D409B

8.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D409B	#FFFFFF	#000000	##FFFFFF
##3D409B	1.00	8.73	2.41	8.73
#FFFFFF	8.73	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004F9E

Deuteranopia (green-blind)

#004799

Tritanopia (blue-blind)

#005667

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3d409b;
/* rgb */ color: rgb(61, 64, 155);
/* oklch */ color: oklch(42.3% 0.145 276.8);

Tailwind

colors: {
  custom: {
    50: '#7c75b9',
    500: '#3d409b',
    950: '#000000',
  },
}

SCSS

$custom: #3d409b;
$custom-light: #7c75b9;
$custom-dark: #000000;

JSON

{
  "hex": "#3d409b",
  "rgb": {
    "r": 61,
    "g": 64,
    "b": 155
  },
  "hsl": {
    "h": 238.085,
    "s": 43.519,
    "l": 42.353
  },
  "oklch": {
    "l": 0.42347,
    "c": 0.1453,
    "h": 276.8
  },
  "luminance": 0.07025
}

Semantic roles & 50–950 ramp

primary

#3D409B

secondary

#B9B77B

accent

#CF55D3

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0A0811

muted

#7C7B80

Preview Lab

Preview with #3D409B

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

Preview Lab → · Contrast checker → · Palette generator →