#3F4E75#3F4E75

#3F4E75 is a dark, moderate blue. Relative luminance 0.078; OKLCH L 42.9% C 0.068 H 267.5°. Best body text is #FFFFFF at 8.21:1 contrast (WCAG AA passes).

Color values

HEX	#3F4E75
RGB	rgb(63, 78, 117)
HSL	hsl(223, 30%, 35%)
HSV	hsv(223, 46%, 46%)
CMYK	cmyk(46.2%, 33.3%, 0%, 54.1%)
CIE-LAB	lab(33.54, 5.44, -24.17)
CIE-LCH	lch(33.54, 24.77, 282.69°)
OKLab	oklab(42.89% -0.003 -0.0677)
OKLCH	oklch(42.89% 0.068 267.5)
XYZ	xyz(7.9842, 7.7894, 17.9090)
Luminance	0.0779 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4E75 #75663F

analogous

#3F6975 #3F4E75 #4B3F75

triadic

#3F4E75 #753F4E #4E753F

tetradic

#3F4E75 #753F69 #75663F #3F754B

square

#3F4E75 #753F69 #75663F #3F754B

split-complementary

#3F4E75 #754B3F #69753F

monochromatic

#141925 #2A334D #3F4E75 #54699D #7889B6

Accessibility & contrast

On white

8.21

#3F4E75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#3F4E75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4E75

8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4E75	#FFFFFF	#000000	##FFFFFF
##3F4E75	1.00	8.21	2.56	8.21
#FFFFFF	8.21	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#405177

Deuteranopia (green-blind)

#3B4D74

Tritanopia (blue-blind)

#2C565C

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3f4e75;
/* rgb */ color: rgb(63, 78, 117);
/* oklch */ color: oklch(42.9% 0.068 267.5);

Tailwind

colors: {
  custom: {
    50: '#777f9d',
    500: '#3f4e75',
    950: '#000000',
  },
}

SCSS

$custom: #3f4e75;
$custom-light: #777f9d;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4e75",
  "rgb": {
    "r": 63,
    "g": 78,
    "b": 117
  },
  "hsl": {
    "h": 223.333,
    "s": 30,
    "l": 35.294
  },
  "oklch": {
    "l": 0.42892,
    "c": 0.0678,
    "h": 267.5
  },
  "luminance": 0.0779
}

Semantic roles & 50–950 ramp

primary

#3F4E75

secondary

#A1936F

accent

#AA62C6

background

#F7F7F9

surface

#EDEEF2

border

#C8C9CC

text

#090A0E

muted

#7B7C7E

Preview Lab

Preview with #3F4E75

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

Preview Lab → · Contrast checker → · Palette generator →