#3F4CCF#3F4CCF

#3F4CCF is a mid, vivid blue. Relative luminance 0.107; OKLCH L 49.0% C 0.200 H 272.2°. Best body text is #FFFFFF at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#3F4CCF
RGB	rgb(63, 76, 207)
HSL	hsl(235, 60%, 53%)
HSV	hsv(235, 70%, 81%)
CMYK	cmyk(69.6%, 63.3%, 0%, 18.8%)
CIE-LAB	lab(39.12, 37.87, -69.16)
CIE-LCH	lch(39.12, 78.85, 298.70°)
OKLab	oklab(49.04% 0.0078 -0.1997)
OKLCH	oklch(49.04% 0.2 272.2)
XYZ	xyz(15.8930, 10.7291, 60.2527)
Luminance	0.1073 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4CCF #CFC23F

analogous

#3F94CF #3F4CCF #7A3FCF

triadic

#3F4CCF #CF3F4C #4CCF3F

tetradic

#3F4CCF #CF3F94 #CFC23F #3FCF7A

square

#3F4CCF #CF3F94 #CFC23F #3FCF7A

split-complementary

#3F4CCF #CF7A3F #94CF3F

monochromatic

#1E2676 #2A35A7 #3F4CCF #707ADB #A1A7E7

Accessibility & contrast

On white

6.67

#3F4CCF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#3F4CCF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4CCF

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4CCF	#FFFFFF	#000000	##FFFFFF
##3F4CCF	1.00	6.67	3.15	6.67
#FFFFFF	6.67	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063D3

Deuteranopia (green-blind)

#0056CC

Tritanopia (blue-blind)

#006E86

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3f4ccf;
/* rgb */ color: rgb(63, 76, 207);
/* oklch */ color: oklch(49.0% 0.200 272.2);

Tailwind

colors: {
  custom: {
    50: '#867edf',
    500: '#3f4ccf',
    950: '#000000',
  },
}

SCSS

$custom: #3f4ccf;
$custom-light: #867edf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4ccf",
  "rgb": {
    "r": 63,
    "g": 76,
    "b": 207
  },
  "hsl": {
    "h": 234.583,
    "s": 60,
    "l": 52.941
  },
  "oklch": {
    "l": 0.49038,
    "c": 0.19985,
    "h": 272.2
  },
  "luminance": 0.10731
}

Semantic roles & 50–950 ramp

primary

#3F4CCF

secondary

#D4CE96

accent

#D545E3

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #3F4CCF

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

Preview Lab → · Contrast checker → · Palette generator →