#3F4AA3#3F4AA3

#3F4AA3 is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.1% C 0.143 H 273.9°. Best body text is #FFFFFF at 7.72:1 contrast (WCAG AA passes).

Color values

HEX	#3F4AA3
RGB	rgb(63, 74, 163)
HSL	hsl(233, 44%, 44%)
HSV	hsv(233, 61%, 64%)
CMYK	cmyk(61.3%, 54.6%, 0%, 36.1%)
CIE-LAB	lab(35.20, 23.77, -49.66)
CIE-LCH	lch(35.20, 55.06, 295.58°)
OKLab	oklab(45.06% 0.0097 -0.1424)
OKLCH	oklch(45.06% 0.143 273.9)
XYZ	xyz(11.1074, 8.5978, 35.7174)
Luminance	0.0860 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4AA3 #A3983F

analogous

#3F7CA3 #3F4AA3 #663FA3

triadic

#3F4AA3 #A33F4A #4AA33F

tetradic

#3F4AA3 #A33F7C #A3983F #3FA366

square

#3F4AA3 #A33F7C #A3983F #3FA366

split-complementary

#3F4AA3 #A3663F #7CA33F

monochromatic

#1D224B #2E3677 #3F4AA3 #5E69C1 #8A92D2

Accessibility & contrast

On white

7.72

#3F4AA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#3F4AA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4AA3

7.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4AA3	#FFFFFF	#000000	##FFFFFF
##3F4AA3	1.00	7.72	2.72	7.72
#FFFFFF	7.72	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F57A6

Deuteranopia (green-blind)

#004FA1

Tritanopia (blue-blind)

#005F6F

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3f4aa3;
/* rgb */ color: rgb(63, 74, 163);
/* oklch */ color: oklch(45.1% 0.143 273.9);

Tailwind

colors: {
  custom: {
    50: '#7e7cbf',
    500: '#3f4aa3',
    950: '#000000',
  },
}

SCSS

$custom: #3f4aa3;
$custom-light: #7e7cbf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4aa3",
  "rgb": {
    "r": 63,
    "g": 74,
    "b": 163
  },
  "hsl": {
    "h": 233.4,
    "s": 44.248,
    "l": 44.314
  },
  "oklch": {
    "l": 0.45058,
    "c": 0.14275,
    "h": 273.9
  },
  "luminance": 0.08599
}

Semantic roles & 50–950 ramp

primary

#3F4AA3

secondary

#BDB681

accent

#C654D4

background

#F8F7FB

surface

#EFEEF7

border

#CAC9D0

text

#0B0912

muted

#7C7B81

Preview Lab

Preview with #3F4AA3

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

Preview Lab → · Contrast checker → · Palette generator →