#3F4EBE#3F4EBE

#3F4EBE is a mid, vivid blue. Relative luminance 0.102; OKLCH L 48.0% C 0.175 H 272.2°. Best body text is #FFFFFF at 6.90:1 contrast (WCAG AA passes).

Color values

HEX	#3F4EBE
RGB	rgb(63, 78, 190)
HSL	hsl(233, 50%, 50%)
HSV	hsv(233, 67%, 75%)
CMYK	cmyk(66.8%, 58.9%, 0%, 25.5%)
CIE-LAB	lab(38.24, 30.68, -60.72)
CIE-LCH	lch(38.24, 68.03, 296.81°)
OKLab	oklab(47.96% 0.0067 -0.1749)
OKLCH	oklch(47.96% 0.175 272.2)
XYZ	xyz(14.0654, 10.2220, 49.9370)
Luminance	0.1022 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4EBE #BEAF3F

analogous

#3F8EBE #3F4EBE #6F3FBE

triadic

#3F4EBE #BE3F4E #4EBE3F

tetradic

#3F4EBE #BE3F8E #BEAF3F #3FBE6F

square

#3F4EBE #BE3F8E #BEAF3F #3FBE6F

split-complementary

#3F4EBE #BE6F3F #8EBE3F

monochromatic

#212862 #303B90 #3F4EBE #6C78CE #9AA2DD

Accessibility & contrast

On white

6.90

#3F4EBE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#3F4EBE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4EBE

6.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4EBE	#FFFFFF	#000000	##FFFFFF
##3F4EBE	1.00	6.90	3.04	6.90
#FFFFFF	6.90	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060C2

Deuteranopia (green-blind)

#0054BC

Tritanopia (blue-blind)

#006A7E

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3f4ebe;
/* rgb */ color: rgb(63, 78, 190);
/* oklch */ color: oklch(48.0% 0.175 272.2);

Tailwind

colors: {
  custom: {
    50: '#837fd2',
    500: '#3f4ebe',
    950: '#000000',
  },
}

SCSS

$custom: #3f4ebe;
$custom-light: #837fd2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4ebe",
  "rgb": {
    "r": 63,
    "g": 78,
    "b": 190
  },
  "hsl": {
    "h": 232.913,
    "s": 50.198,
    "l": 49.608
  },
  "oklch": {
    "l": 0.4796,
    "c": 0.17504,
    "h": 272.2
  },
  "luminance": 0.10223
}

Semantic roles & 50–950 ramp

primary

#3F4EBE

secondary

#C9C38F

accent

#C94EDA

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3F4EBE

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

Preview Lab → · Contrast checker → · Palette generator →