#3F4EA9#3F4EA9

#3F4EA9 is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.3% C 0.146 H 272.4°. Best body text is #FFFFFF at 7.31:1 contrast (WCAG AA passes).

Color values

HEX	#3F4EA9
RGB	rgb(63, 78, 169)
HSL	hsl(232, 46%, 45%)
HSV	hsv(232, 63%, 66%)
CMYK	cmyk(62.7%, 53.8%, 0%, 33.7%)
CIE-LAB	lab(36.69, 23.27, -50.84)
CIE-LCH	lch(36.69, 55.92, 294.60°)
OKLab	oklab(46.31% 0.0061 -0.1458)
OKLCH	oklch(46.31% 0.146 272.4)
XYZ	xyz(11.9333, 9.3691, 38.7080)
Luminance	0.0937 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4EA9 #A99A3F

analogous

#3F83A9 #3F4EA9 #653FA9

triadic

#3F4EA9 #A93F4E #4EA93F

tetradic

#3F4EA9 #A93F83 #A99A3F #3FA965

square

#3F4EA9 #A93F83 #A99A3F #3FA965

split-complementary

#3F4EA9 #A9653F #83A93F

monochromatic

#1E2550 #2E397C #3F4EA9 #616FC4 #8E98D5

Accessibility & contrast

On white

7.31

#3F4EA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#3F4EA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4EA9

7.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4EA9	#FFFFFF	#000000	##FFFFFF
##3F4EA9	1.00	7.31	2.87	7.31
#FFFFFF	7.31	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#135BAC

Deuteranopia (green-blind)

#0052A7

Tritanopia (blue-blind)

#006374

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #3f4ea9;
/* rgb */ color: rgb(63, 78, 169);
/* oklch */ color: oklch(46.3% 0.146 272.4);

Tailwind

colors: {
  custom: {
    50: '#7f7fc3',
    500: '#3f4ea9',
    950: '#000000',
  },
}

SCSS

$custom: #3f4ea9;
$custom-light: #7f7fc3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4ea9",
  "rgb": {
    "r": 63,
    "g": 78,
    "b": 169
  },
  "hsl": {
    "h": 231.509,
    "s": 45.69,
    "l": 45.49
  },
  "oklch": {
    "l": 0.4631,
    "c": 0.14598,
    "h": 272.4
  },
  "luminance": 0.0937
}

Semantic roles & 50–950 ramp

primary

#3F4EA9

secondary

#C0B784

accent

#C352D5

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3F4EA9

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

Preview Lab → · Contrast checker → · Palette generator →