#3D439B#3D439B

#3D439B is a dark, vivid blue. Relative luminance 0.074; OKLCH L 42.9% C 0.141 H 275.8°. Best body text is #FFFFFF at 8.49:1 contrast (WCAG AA passes).

Color values

HEX	#3D439B
RGB	rgb(61, 67, 155)
HSL	hsl(236, 44%, 42%)
HSV	hsv(236, 61%, 61%)
CMYK	cmyk(60.6%, 56.8%, 0%, 39.2%)
CIE-LAB	lab(32.64, 25.17, -48.98)
CIE-LCH	lch(32.64, 55.07, 297.20°)
OKLab	oklab(42.93% 0.0142 -0.1405)
OKLCH	oklch(42.93% 0.141 275.8)
XYZ	xyz(9.8461, 7.3722, 31.9081)
Luminance	0.0737 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D439B #9B953D

analogous

#3D729B #3D439B #663D9B

triadic

#3D439B #9B3D43 #439B3D

tetradic

#3D439B #9B3D72 #9B953D #3D9B66

square

#3D439B #9B3D72 #9B953D #3D9B66

split-complementary

#3D439B #9B663D #729B3D

monochromatic

#1A1D43 #2C306F #3D439B #585EBD #8489CF

Accessibility & contrast

On white

8.49

#3D439B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#3D439B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3D439B

8.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D439B	#FFFFFF	#000000	##FFFFFF
##3D439B	1.00	8.49	2.47	8.49
#FFFFFF	8.49	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00519E

Deuteranopia (green-blind)

#004999

Tritanopia (blue-blind)

#005868

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3d439b;
/* rgb */ color: rgb(61, 67, 155);
/* oklch */ color: oklch(42.9% 0.141 275.8);

Tailwind

colors: {
  custom: {
    50: '#7c77b9',
    500: '#3d439b',
    950: '#000000',
  },
}

SCSS

$custom: #3d439b;
$custom-light: #7c77b9;
$custom-dark: #000000;

JSON

{
  "hex": "#3d439b",
  "rgb": {
    "r": 61,
    "g": 67,
    "b": 155
  },
  "hsl": {
    "h": 236.17,
    "s": 43.519,
    "l": 42.353
  },
  "oklch": {
    "l": 0.42925,
    "c": 0.14126,
    "h": 275.8
  },
  "luminance": 0.07373
}

Semantic roles & 50–950 ramp

primary

#3D439B

secondary

#B9B57B

accent

#CB55D3

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0811

muted

#7C7B80

Preview Lab

Preview with #3D439B

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

Preview Lab → · Contrast checker → · Palette generator →