#3F4C97#3F4C97

#3F4C97 is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.6% C 0.123 H 273.0°. Best body text is #FFFFFF at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#3F4C97
RGB	rgb(63, 76, 151)
HSL	hsl(231, 41%, 42%)
HSV	hsv(231, 58%, 59%)
CMYK	cmyk(58.3%, 49.7%, 0%, 40.8%)
CIE-LAB	lab(34.92, 18.26, -42.87)
CIE-LCH	lch(34.92, 46.60, 293.07°)
OKLab	oklab(44.59% 0.0065 -0.1224)
OKLCH	oklch(44.59% 0.123 273)
XYZ	xyz(10.2184, 8.4593, 30.3665)
Luminance	0.0846 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4C97 #978A3F

analogous

#3F7897 #3F4C97 #5E3F97

triadic

#3F4C97 #973F4C #4C973F

tetradic

#3F4C97 #973F78 #978A3F #3F975E

square

#3F4C97 #973F78 #978A3F #3F975E

split-complementary

#3F4C97 #975E3F #78973F

monochromatic

#1B2141 #2D366C #3F4C97 #5968BA #858FCC

Accessibility & contrast

On white

7.80

#3F4C97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#3F4C97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4C97

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4C97	#FFFFFF	#000000	##FFFFFF
##3F4C97	1.00	7.80	2.69	7.80
#FFFFFF	7.80	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#27569A

Deuteranopia (green-blind)

#194F95

Tritanopia (blue-blind)

#055D6A

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3f4c97;
/* rgb */ color: rgb(63, 76, 151);
/* oklch */ color: oklch(44.6% 0.123 273.0);

Tailwind

colors: {
  custom: {
    50: '#7c7db6',
    500: '#3f4c97',
    950: '#000000',
  },
}

SCSS

$custom: #3f4c97;
$custom-light: #7c7db6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4c97",
  "rgb": {
    "r": 63,
    "g": 76,
    "b": 151
  },
  "hsl": {
    "h": 231.136,
    "s": 41.121,
    "l": 41.961
  },
  "oklch": {
    "l": 0.44588,
    "c": 0.1226,
    "h": 273
  },
  "luminance": 0.0846
}

Semantic roles & 50–950 ramp

primary

#3F4C97

secondary

#B6AE7C

accent

#BF57D1

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#0A0911

muted

#7C7B80

Preview Lab

Preview with #3F4C97

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

Preview Lab → · Contrast checker → · Palette generator →