#3C307D#3C307D

#3C307D is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.8% C 0.125 H 285.6°. Best body text is #FFFFFF at 10.99:1 contrast (WCAG AA passes).

Color values

HEX	#3C307D
RGB	rgb(60, 48, 125)
HSL	hsl(249, 45%, 34%)
HSV	hsv(249, 62%, 49%)
CMYK	cmyk(52%, 61.6%, 0%, 51%)
CIE-LAB	lab(25.43, 27.17, -42.13)
CIE-LCH	lch(25.43, 50.13, 302.82°)
OKLab	oklab(36.84% 0.0337 -0.1205)
OKLCH	oklch(36.84% 0.125 285.6)
XYZ	xyz(6.6210, 4.5549, 19.9284)
Luminance	0.0456 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3C307D #717D30

analogous

#304B7D #3C307D #63307D

triadic

#3C307D #7D3C30 #307D3C

tetradic

#3C307D #7D304B #717D30 #307D63

square

#3C307D #7D304B #717D30 #307D63

split-complementary

#3C307D #7D6330 #4B7D30

monochromatic

#120E25 #271F51 #3C307D #5141A9 #7364C3

Accessibility & contrast

On white

10.99

#3C307D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#3C307D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3C307D

10.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3C307D	#FFFFFF	#000000	##FFFFFF
##3C307D	1.00	10.99	1.91	10.99
#FFFFFF	10.99	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E80

Deuteranopia (green-blind)

#003A7B

Tritanopia (blue-blind)

#244251

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #3c307d;
/* rgb */ color: rgb(60, 48, 125);
/* oklch */ color: oklch(36.8% 0.125 285.6);

Tailwind

colors: {
  custom: {
    50: '#7869a3',
    500: '#3c307d',
    950: '#000000',
  },
}

SCSS

$custom: #3c307d;
$custom-light: #7869a3;
$custom-dark: #000000;

JSON

{
  "hex": "#3c307d",
  "rgb": {
    "r": 60,
    "g": 48,
    "b": 125
  },
  "hsl": {
    "h": 249.351,
    "s": 44.509,
    "l": 33.922
  },
  "oklch": {
    "l": 0.36844,
    "c": 0.12517,
    "h": 285.6
  },
  "luminance": 0.04555
}

Semantic roles & 50–950 ramp

primary

#3C307D

secondary

#9FAB5E

accent

#D454C0

background

#F7F6FA

surface

#EEEBF4

border

#C9C6CE

text

#09060F

muted

#7B7A7F

Preview Lab

Preview with #3C307D

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

Preview Lab → · Contrast checker → · Palette generator →