#3F398F#3F398F

#3F398F is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.2% C 0.138 H 281.4°. Best body text is #FFFFFF at 9.58:1 contrast (WCAG AA passes).

Color values

HEX	#3F398F
RGB	rgb(63, 57, 143)
HSL	hsl(244, 43%, 39%)
HSV	hsv(244, 60%, 56%)
CMYK	cmyk(55.9%, 60.1%, 0%, 43.9%)
CIE-LAB	lab(29.33, 27.96, -47.01)
CIE-LCH	lch(29.33, 54.70, 300.74°)
OKLab	oklab(40.22% 0.0272 -0.1348)
OKLCH	oklch(40.22% 0.138 281.4)
XYZ	xyz(8.4694, 5.9657, 26.6865)
Luminance	0.0597 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F398F #898F39

analogous

#395E8F #3F398F #6A398F

triadic

#3F398F #8F3F39 #398F3F

tetradic

#3F398F #8F395E #898F39 #398F6A

square

#3F398F #8F395E #898F39 #398F6A

split-complementary

#3F398F #8F6A39 #5E8F39

monochromatic

#181637 #2C2863 #3F398F #554DB8 #7E79CA

Accessibility & contrast

On white

9.58

#3F398F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#3F398F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F398F

9.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F398F	#FFFFFF	#000000	##FFFFFF
##3F398F	1.00	9.58	2.19	9.58
#FFFFFF	9.58	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004892

Deuteranopia (green-blind)

#00428D

Tritanopia (blue-blind)

#1A4D5E

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #3f398f;
/* rgb */ color: rgb(63, 57, 143);
/* oklch */ color: oklch(40.2% 0.138 281.4);

Tailwind

colors: {
  custom: {
    50: '#7c6fb0',
    500: '#3f398f',
    950: '#000000',
  },
}

SCSS

$custom: #3f398f;
$custom-light: #7c6fb0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f398f",
  "rgb": {
    "r": 63,
    "g": 57,
    "b": 143
  },
  "hsl": {
    "h": 244.186,
    "s": 43,
    "l": 39.216
  },
  "oklch": {
    "l": 0.40219,
    "c": 0.1375,
    "h": 281.4
  },
  "luminance": 0.05966
}

Semantic roles & 50–950 ramp

primary

#3F398F

secondary

#AEB371

accent

#D355CA

background

#F7F6FA

surface

#EEECF5

border

#C9C7CF

text

#0A0711

muted

#7C7A80

Preview Lab

Preview with #3F398F

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

Preview Lab → · Contrast checker → · Palette generator →