#3F4E89#3F4E89

#3F4E89 is a dark, moderate blue. Relative luminance 0.083; OKLCH L 44.1% C 0.099 H 271.1°. Best body text is #FFFFFF at 7.89:1 contrast (WCAG AA passes).

Color values

HEX	#3F4E89
RGB	rgb(63, 78, 137)
HSL	hsl(228, 37%, 39%)
HSV	hsv(228, 54%, 54%)
CMYK	cmyk(54%, 43.1%, 0%, 46.3%)
CIE-LAB	lab(34.62, 12.10, -34.82)
CIE-LCH	lch(34.62, 36.87, 289.17°)
OKLab	oklab(44.08% 0.0019 -0.0988)
OKLCH	oklch(44.08% 0.099 271.1)
XYZ	xyz(9.2882, 8.3111, 24.7768)
Luminance	0.0831 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4E89 #897A3F

analogous

#3F7389 #3F4E89 #553F89

triadic

#3F4E89 #893F4E #4E893F

tetradic

#3F4E89 #893F73 #897A3F #3F8955

square

#3F4E89 #893F73 #897A3F #3F8955

split-complementary

#3F4E89 #89553F #73893F

monochromatic

#181E35 #2C365F #3F4E89 #5567B1 #7E8DC4

Accessibility & contrast

On white

7.89

#3F4E89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#3F4E89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4E89

7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4E89	#FFFFFF	#000000	##FFFFFF
##3F4E89	1.00	7.89	2.66	7.89
#FFFFFF	7.89	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#36558B

Deuteranopia (green-blind)

#2E4E88

Tritanopia (blue-blind)

#1C5B65

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3f4e89;
/* rgb */ color: rgb(63, 78, 137);
/* oklch */ color: oklch(44.1% 0.099 271.1);

Tailwind

colors: {
  custom: {
    50: '#797fac',
    500: '#3f4e89',
    950: '#000000',
  },
}

SCSS

$custom: #3f4e89;
$custom-light: #797fac;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4e89",
  "rgb": {
    "r": 63,
    "g": 78,
    "b": 137
  },
  "hsl": {
    "h": 227.838,
    "s": 37,
    "l": 39.216
  },
  "oklch": {
    "l": 0.4408,
    "c": 0.0988,
    "h": 271.1
  },
  "luminance": 0.08312
}

Semantic roles & 50–950 ramp

primary

#3F4E89

secondary

#AEA376

accent

#B65BCD

background

#F7F7FA

surface

#EEEEF4

border

#C9C9CE

text

#090A10

muted

#7B7C7F

Preview Lab

Preview with #3F4E89

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

Preview Lab → · Contrast checker → · Palette generator →