#3D309B#3D309B

#3D309B is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.6% C 0.166 H 281.2°. Best body text is #FFFFFF at 10.03:1 contrast (WCAG AA passes).

Color values

HEX	#3D309B
RGB	rgb(61, 48, 155)
HSL	hsl(247, 53%, 40%)
HSV	hsv(247, 69%, 61%)
CMYK	cmyk(60.6%, 69%, 0%, 39.2%)
CIE-LAB	lab(28.04, 37.19, -56.47)
CIE-LCH	lch(28.04, 67.62, 303.37°)
OKLab	oklab(39.55% 0.0321 -0.1627)
OKLCH	oklch(39.55% 0.166 281.2)
XYZ	xyz(8.8960, 5.4719, 31.5914)
Luminance	0.0547 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D309B #8E9B30

analogous

#30589B #3D309B #73309B

triadic

#3D309B #9B3D30 #309B3D

tetradic

#3D309B #9B3058 #8E9B30 #309B73

square

#3D309B #9B3058 #8E9B30 #309B73

split-complementary

#3D309B #9B7330 #589B30

monochromatic

#18133E #2B226C #3D309B #5343C5 #7E72D3

Accessibility & contrast

On white

10.03

#3D309B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#3D309B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3D309B

10.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D309B	#FFFFFF	#000000	##FFFFFF
##3D309B	1.00	10.03	2.09	10.03
#FFFFFF	10.03	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00469E

Deuteranopia (green-blind)

#003E99

Tritanopia (blue-blind)

#004C61

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #3d309b;
/* rgb */ color: rgb(61, 48, 155);
/* oklch */ color: oklch(39.6% 0.166 281.2);

Tailwind

colors: {
  custom: {
    50: '#7d69b9',
    500: '#3d309b',
    950: '#000000',
  },
}

SCSS

$custom: #3d309b;
$custom-light: #7d69b9;
$custom-dark: #000000;

JSON

{
  "hex": "#3d309b",
  "rgb": {
    "r": 61,
    "g": 48,
    "b": 155
  },
  "hsl": {
    "h": 247.29,
    "s": 52.709,
    "l": 39.804
  },
  "oklch": {
    "l": 0.39551,
    "c": 0.1658,
    "h": 281.2
  },
  "luminance": 0.05473
}

Semantic roles & 50–950 ramp

primary

#3D309B

secondary

#B1BB6C

accent

#DC4CCB

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #3D309B

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

Preview Lab → · Contrast checker → · Palette generator →