#3F4FA1#3F4FA1

#3F4FA1 is a mid, vivid blue. Relative luminance 0.092; OKLCH L 45.9% C 0.133 H 271.9°. Best body text is #FFFFFF at 7.38:1 contrast (WCAG AA passes).

Color values

HEX	#3F4FA1
RGB	rgb(63, 79, 161)
HSL	hsl(230, 44%, 44%)
HSV	hsv(230, 61%, 63%)
CMYK	cmyk(60.9%, 50.9%, 0%, 36.9%)
CIE-LAB	lab(36.41, 19.80, -46.51)
CIE-LCH	lch(36.41, 50.55, 293.06°)
OKLab	oklab(45.92% 0.0044 -0.1331)
OKLCH	oklch(45.92% 0.133 271.9)
XYZ	xyz(11.2768, 9.2210, 34.8969)
Luminance	0.0922 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4FA1 #A1913F

analogous

#3F80A1 #3F4FA1 #603FA1

triadic

#3F4FA1 #A13F4F #4FA13F

tetradic

#3F4FA1 #A13F80 #A1913F #3FA160

square

#3F4FA1 #A13F80 #A1913F #3FA160

split-complementary

#3F4FA1 #A1603F #80A13F

monochromatic

#1D2449 #2E3975 #3F4FA1 #5D6DC0 #8995D1

Accessibility & contrast

On white

7.38

#3F4FA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#3F4FA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4FA1

7.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4FA1	#FFFFFF	#000000	##FFFFFF
##3F4FA1	1.00	7.38	2.84	7.38
#FFFFFF	7.38	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#235AA4

Deuteranopia (green-blind)

#0E529F

Tritanopia (blue-blind)

#006270

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #3f4fa1;
/* rgb */ color: rgb(63, 79, 161);
/* oklch */ color: oklch(45.9% 0.133 271.9);

Tailwind

colors: {
  custom: {
    50: '#7d80bd',
    500: '#3f4fa1',
    950: '#000000',
  },
}

SCSS

$custom: #3f4fa1;
$custom-light: #7d80bd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4fa1",
  "rgb": {
    "r": 63,
    "g": 79,
    "b": 161
  },
  "hsl": {
    "h": 230.204,
    "s": 43.75,
    "l": 43.922
  },
  "oklch": {
    "l": 0.45924,
    "c": 0.13317,
    "h": 271.9
  },
  "luminance": 0.09222
}

Semantic roles & 50–950 ramp

primary

#3F4FA1

secondary

#BCB280

accent

#BF54D3

background

#F8F7FB

surface

#EFEEF7

border

#CAC9D0

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #3F4FA1

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

Preview Lab → · Contrast checker → · Palette generator →