#3F4091#3F4091

#3F4091 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.7% C 0.131 H 278.6°. Best body text is #FFFFFF at 8.92:1 contrast (WCAG AA passes).

Color values

HEX	#3F4091
RGB	rgb(63, 64, 145)
HSL	hsl(239, 39%, 41%)
HSV	hsv(239, 57%, 57%)
CMYK	cmyk(56.6%, 55.9%, 0%, 43.1%)
CIE-LAB	lab(31.27, 24.08, -45.10)
CIE-LCH	lch(31.27, 51.12, 298.10°)
OKLab	oklab(41.71% 0.0195 -0.1291)
OKLCH	oklch(41.71% 0.131 278.6)
XYZ	xyz(8.9925, 6.7673, 27.6149)
Luminance	0.0677 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4091 #91903F

analogous

#3F6991 #3F4091 #673F91

triadic

#3F4091 #913F40 #40913F

tetradic

#3F4091 #913F69 #91903F #3F9167

square

#3F4091 #913F69 #91903F #3F9167

split-complementary

#3F4091 #91673F #69913F

monochromatic

#1A1A3C #2C2D66 #3F4091 #5758B6 #8283C9

Accessibility & contrast

On white

8.92

#3F4091 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#3F4091 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4091

8.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4091	#FFFFFF	#000000	##FFFFFF
##3F4091	1.00	8.92	2.35	8.92
#FFFFFF	8.92	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C4D94

Deuteranopia (green-blind)

#00468F

Tritanopia (blue-blind)

#165362

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3f4091;
/* rgb */ color: rgb(63, 64, 145);
/* oklch */ color: oklch(41.7% 0.131 278.6);

Tailwind

colors: {
  custom: {
    50: '#7b74b2',
    500: '#3f4091',
    950: '#000000',
  },
}

SCSS

$custom: #3f4091;
$custom-light: #7b74b2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4091",
  "rgb": {
    "r": 63,
    "g": 64,
    "b": 145
  },
  "hsl": {
    "h": 239.268,
    "s": 39.423,
    "l": 40.784
  },
  "oklch": {
    "l": 0.4171,
    "c": 0.13055,
    "h": 278.6
  },
  "luminance": 0.06768
}

Semantic roles & 50–950 ramp

primary

#3F4091

secondary

#B3B279

accent

#CE58CF

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0811

muted

#7C7B80

Preview Lab

Preview with #3F4091

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

Preview Lab → · Contrast checker → · Palette generator →