#3F4E9C#3F4E9C

#3F4E9C is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.4% C 0.127 H 272.2°. Best body text is #FFFFFF at 7.55:1 contrast (WCAG AA passes).

Color values

HEX	#3F4E9C
RGB	rgb(63, 78, 156)
HSL	hsl(230, 42%, 43%)
HSV	hsv(230, 60%, 61%)
CMYK	cmyk(59.6%, 50%, 0%, 38.8%)
CIE-LAB	lab(35.80, 18.70, -44.48)
CIE-LCH	lch(35.80, 48.25, 292.80°)
OKLab	oklab(45.36% 0.0049 -0.1271)
OKLCH	oklch(45.36% 0.127 272.2)
XYZ	xyz(10.7731, 8.9050, 32.5972)
Luminance	0.0891 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4E9C #9C8D3F

analogous

#3F7C9C #3F4E9C #5F3F9C

triadic

#3F4E9C #9C3F4E #4E9C3F

tetradic

#3F4E9C #9C3F7C #9C8D3F #3F9C5F

square

#3F4E9C #9C3F7C #9C8D3F #3F9C5F

split-complementary

#3F4E9C #9C5F3F #7C9C3F

monochromatic

#1C2245 #2D3870 #3F4E9C #5B6BBD #8792CE

Accessibility & contrast

On white

7.55

#3F4E9C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#3F4E9C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4E9C

7.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4E9C	#FFFFFF	#000000	##FFFFFF
##3F4E9C	1.00	7.55	2.78	7.55
#FFFFFF	7.55	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26589F

Deuteranopia (green-blind)

#16509A

Tritanopia (blue-blind)

#00606D

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3f4e9c;
/* rgb */ color: rgb(63, 78, 156);
/* oklch */ color: oklch(45.4% 0.127 272.2);

Tailwind

colors: {
  custom: {
    50: '#7c7fba',
    500: '#3f4e9c',
    950: '#000000',
  },
}

SCSS

$custom: #3f4e9c;
$custom-light: #7c7fba;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4e9c",
  "rgb": {
    "r": 63,
    "g": 78,
    "b": 156
  },
  "hsl": {
    "h": 230.323,
    "s": 42.466,
    "l": 42.941
  },
  "oklch": {
    "l": 0.45359,
    "c": 0.12723,
    "h": 272.2
  },
  "luminance": 0.08906
}

Semantic roles & 50–950 ramp

primary

#3F4E9C

secondary

#B9AF7E

accent

#BE56D2

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#0A0A11

muted

#7C7C80

Preview Lab

Preview with #3F4E9C

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

Preview Lab → · Contrast checker → · Palette generator →