#3F4498#3F4498

#3F4498 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.0% C 0.135 H 276.5°. Best body text is #FFFFFF at 8.43:1 contrast (WCAG AA passes).

Color values

HEX	#3F4498
RGB	rgb(63, 68, 152)
HSL	hsl(237, 41%, 42%)
HSV	hsv(237, 59%, 60%)
CMYK	cmyk(58.6%, 55.3%, 0%, 40.4%)
CIE-LAB	lab(32.83, 23.86, -46.85)
CIE-LCH	lch(32.83, 52.58, 296.99°)
OKLab	oklab(43.03% 0.0154 -0.1342)
OKLCH	oklch(43.03% 0.135 276.5)
XYZ	xyz(9.7827, 7.4573, 30.6236)
Luminance	0.0746 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4498 #98933F

analogous

#3F7198 #3F4498 #673F98

triadic

#3F4498 #983F44 #44983F

tetradic

#3F4498 #983F71 #98933F #3F9867

square

#3F4498 #983F71 #98933F #3F9867

split-complementary

#3F4498 #98673F #71983F

monochromatic

#1B1D41 #2D316D #3F4498 #5A5FBA #8589CC

Accessibility & contrast

On white

8.43

#3F4498 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#3F4498 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4498

8.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4498	#FFFFFF	#000000	##FFFFFF
##3F4498	1.00	8.43	2.49	8.43
#FFFFFF	8.43	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D519B

Deuteranopia (green-blind)

#004A96

Tritanopia (blue-blind)

#065767

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3f4498;
/* rgb */ color: rgb(63, 68, 152);
/* oklch */ color: oklch(43.0% 0.135 276.5);

Tailwind

colors: {
  custom: {
    50: '#7c77b7',
    500: '#3f4498',
    950: '#000000',
  },
}

SCSS

$custom: #3f4498;
$custom-light: #7c77b7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4498",
  "rgb": {
    "r": 63,
    "g": 68,
    "b": 152
  },
  "hsl": {
    "h": 236.629,
    "s": 41.395,
    "l": 42.157
  },
  "oklch": {
    "l": 0.43032,
    "c": 0.13511,
    "h": 276.5
  },
  "luminance": 0.07458
}

Semantic roles & 50–950 ramp

primary

#3F4498

secondary

#B7B47C

accent

#CA57D1

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0811

muted

#7C7B80

Preview Lab

Preview with #3F4498

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

Preview Lab → · Contrast checker → · Palette generator →