#3F41AD#3F41AD

#3F41AD is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.2% C 0.168 H 276.2°. Best body text is #FFFFFF at 8.17:1 contrast (WCAG AA passes).

Color values

HEX	#3F41AD
RGB	rgb(63, 65, 173)
HSL	hsl(239, 47%, 46%)
HSV	hsv(239, 64%, 68%)
CMYK	cmyk(63.6%, 62.4%, 0%, 32.2%)
CIE-LAB	lab(33.68, 33.04, -58.11)
CIE-LCH	lch(33.68, 66.85, 299.62°)
OKLab	oklab(44.17% 0.0182 -0.1673)
OKLCH	oklch(44.17% 0.168 276.2)
XYZ	xyz(11.4806, 7.8536, 40.4379)
Luminance	0.0785 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F41AD #ADAB3F

analogous

#3F78AD #3F41AD #743FAD

triadic

#3F41AD #AD3F41 #41AD3F

tetradic

#3F41AD #AD3F78 #ADAB3F #3FAD74

square

#3F41AD #AD3F78 #ADAB3F #3FAD74

split-complementary

#3F41AD #AD743F #78AD3F

monochromatic

#1E1F53 #2F3080 #3F41AD #6365C6 #9091D7

Accessibility & contrast

On white

8.17

#3F41AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#3F41AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F41AD

8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F41AD	#FFFFFF	#000000	##FFFFFF
##3F41AD	1.00	8.17	2.57	8.17
#FFFFFF	8.17	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B0

Deuteranopia (green-blind)

#004AAB

Tritanopia (blue-blind)

#005C71

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3f41ad;
/* rgb */ color: rgb(63, 65, 173);
/* oklch */ color: oklch(44.2% 0.168 276.2);

Tailwind

colors: {
  custom: {
    50: '#8076c6',
    500: '#3f41ad',
    950: '#000000',
  },
}

SCSS

$custom: #3f41ad;
$custom-light: #8076c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f41ad",
  "rgb": {
    "r": 63,
    "g": 65,
    "b": 173
  },
  "hsl": {
    "h": 238.909,
    "s": 46.61,
    "l": 46.275
  },
  "oklch": {
    "l": 0.44168,
    "c": 0.16834,
    "h": 276.2
  },
  "luminance": 0.07854
}

Semantic roles & 50–950 ramp

primary

#3F41AD

secondary

#C2C186

accent

#D452D6

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3F41AD

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

Preview Lab → · Contrast checker → · Palette generator →