#3F4584#3F4584

#3F4584 is a dark, moderate blue. Relative luminance 0.070; OKLCH L 41.8% C 0.104 H 276.8°. Best body text is #FFFFFF at 8.77:1 contrast (WCAG AA passes).

Color values

HEX	#3F4584
RGB	rgb(63, 69, 132)
HSL	hsl(235, 35%, 38%)
HSV	hsv(235, 52%, 52%)
CMYK	cmyk(52.3%, 47.7%, 0%, 48.2%)
CIE-LAB	lab(31.76, 16.35, -36.31)
CIE-LCH	lch(31.76, 39.82, 294.24°)
OKLab	oklab(41.8% 0.0123 -0.1032)
OKLCH	oklch(41.8% 0.104 276.8)
XYZ	xyz(8.3416, 6.9784, 22.7327)
Luminance	0.0698 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4584 #847E3F

analogous

#3F6784 #3F4584 #5B3F84

triadic

#3F4584 #843F45 #45843F

tetradic

#3F4584 #843F67 #847E3F #3F845B

square

#3F4584 #843F67 #847E3F #3F845B

split-complementary

#3F4584 #845B3F #67843F

monochromatic

#171A31 #2B2F5B #3F4584 #535BAD #7D83C1

Accessibility & contrast

On white

8.77

#3F4584 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#3F4584 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4584

8.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4584	#FFFFFF	#000000	##FFFFFF
##3F4584	1.00	8.77	2.40	8.77
#FFFFFF	8.77	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A4E86

Deuteranopia (green-blind)

#234883

Tritanopia (blue-blind)

#23535E

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3f4584;
/* rgb */ color: rgb(63, 69, 132);
/* oklch */ color: oklch(41.8% 0.104 276.8);

Tailwind

colors: {
  custom: {
    50: '#7978a8',
    500: '#3f4584',
    950: '#000000',
  },
}

SCSS

$custom: #3f4584;
$custom-light: #7978a8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4584",
  "rgb": {
    "r": 63,
    "g": 69,
    "b": 132
  },
  "hsl": {
    "h": 234.783,
    "s": 35.385,
    "l": 38.235
  },
  "oklch": {
    "l": 0.41796,
    "c": 0.10394,
    "h": 276.8
  },
  "luminance": 0.06979
}

Semantic roles & 50–950 ramp

primary

#3F4584

secondary

#ABA674

accent

#C25CCB

background

#F7F7FA

surface

#EEEDF4

border

#C9C8CE

text

#090910

muted

#7B7B7F

Preview Lab

Preview with #3F4584

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

Preview Lab → · Contrast checker → · Palette generator →