#3F347D#3F347D

#3F347D is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.9% C 0.119 H 286.1°. Best body text is #FFFFFF at 10.51:1 contrast (WCAG AA passes).

Color values

HEX	#3F347D
RGB	rgb(63, 52, 125)
HSL	hsl(249, 41%, 35%)
HSV	hsv(249, 58%, 49%)
CMYK	cmyk(49.6%, 58.4%, 0%, 51%)
CIE-LAB	lab(26.72, 25.25, -40.03)
CIE-LCH	lch(26.72, 47.33, 302.24°)
OKLab	oklab(37.86% 0.0331 -0.1143)
OKLCH	oklch(37.86% 0.119 286.1)
XYZ	xyz(6.9785, 4.9931, 19.9941)
Luminance	0.0499 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F347D #727D34

analogous

#344E7D #3F347D #64347D

triadic

#3F347D #7D3F34 #347D3F

tetradic

#3F347D #7D344E #727D34 #347D64

square

#3F347D #7D344E #727D34 #347D64

split-complementary

#3F347D #7D6434 #4E7D34

monochromatic

#131027 #292252 #3F347D #5546A8 #776AC1

Accessibility & contrast

On white

10.51

#3F347D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#3F347D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F347D

10.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F347D	#FFFFFF	#000000	##FFFFFF
##3F347D	1.00	10.51	2.00	10.51
#FFFFFF	10.51	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#06417F

Deuteranopia (green-blind)

#033D7B

Tritanopia (blue-blind)

#2A4453

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #3f347d;
/* rgb */ color: rgb(63, 52, 125);
/* oklch */ color: oklch(37.9% 0.119 286.1);

Tailwind

colors: {
  custom: {
    50: '#796ca3',
    500: '#3f347d',
    950: '#000000',
  },
}

SCSS

$custom: #3f347d;
$custom-light: #796ca3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f347d",
  "rgb": {
    "r": 63,
    "g": 52,
    "b": 125
  },
  "hsl": {
    "h": 249.041,
    "s": 41.243,
    "l": 34.706
  },
  "oklch": {
    "l": 0.37863,
    "c": 0.11896,
    "h": 286.1
  },
  "luminance": 0.04993
}

Semantic roles & 50–950 ramp

primary

#3F347D

secondary

#9FA964

accent

#D157BF

background

#F7F6FA

surface

#EEEBF4

border

#C9C6CE

text

#09070F

muted

#7B7A7F

Preview Lab

Preview with #3F347D

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

Preview Lab → · Contrast checker → · Palette generator →