#3F4BCF#3F4BCF

#3F4BCF is a mid, highly saturated blue. Relative luminance 0.106; OKLCH L 48.9% C 0.201 H 272.4°. Best body text is #FFFFFF at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#3F4BCF
RGB	rgb(63, 75, 207)
HSL	hsl(235, 60%, 53%)
HSV	hsv(235, 70%, 81%)
CMYK	cmyk(69.6%, 63.8%, 0%, 18.8%)
CIE-LAB	lab(38.89, 38.49, -69.55)
CIE-LCH	lch(38.89, 79.49, 298.96°)
OKLab	oklab(48.87% 0.0085 -0.2008)
OKLCH	oklch(48.87% 0.201 272.4)
XYZ	xyz(15.8247, 10.5924, 60.2300)
Luminance	0.1059 (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

#3F4BCF #CFC33F

analogous

#3F93CF #3F4BCF #7B3FCF

triadic

#3F4BCF #CF3F4B #4BCF3F

tetradic

#3F4BCF #CF3F93 #CFC33F #3FCF7B

square

#3F4BCF #CF3F93 #CFC33F #3FCF7B

split-complementary

#3F4BCF #CF7B3F #93CF3F

monochromatic

#1E2576 #2A34A7 #3F4BCF #7079DB #A1A7E7

Accessibility & contrast

On white

6.73

#3F4BCF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#3F4BCF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4BCF

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4BCF	#FFFFFF	#000000	##FFFFFF
##3F4BCF	1.00	6.73	3.12	6.73
#FFFFFF	6.73	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062D3

Deuteranopia (green-blind)

#0055CC

Tritanopia (blue-blind)

#006D86

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3f4bcf;
/* rgb */ color: rgb(63, 75, 207);
/* oklch */ color: oklch(48.9% 0.201 272.4);

Tailwind

colors: {
  custom: {
    50: '#877ddf',
    500: '#3f4bcf',
    950: '#000000',
  },
}

SCSS

$custom: #3f4bcf;
$custom-light: #877ddf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4bcf",
  "rgb": {
    "r": 63,
    "g": 75,
    "b": 207
  },
  "hsl": {
    "h": 235,
    "s": 60,
    "l": 52.941
  },
  "oklch": {
    "l": 0.48866,
    "c": 0.20102,
    "h": 272.4
  },
  "luminance": 0.10594
}

Semantic roles & 50–950 ramp

primary

#3F4BCF

secondary

#D4CF96

accent

#D645E3

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #3F4BCF

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

Preview Lab → · Contrast checker → · Palette generator →