#3F48CE#3F48CE

#3F48CE is a mid, highly saturated blue. Relative luminance 0.101; OKLCH L 48.3% C 0.203 H 273.0°. Best body text is #FFFFFF at 6.93:1 contrast (WCAG AA passes).

Color values

HEX	#3F48CE
RGB	rgb(63, 72, 206)
HSL	hsl(236, 59%, 53%)
HSV	hsv(236, 69%, 81%)
CMYK	cmyk(69.4%, 65%, 0%, 19.2%)
CIE-LAB	lab(38.10, 39.99, -70.25)
CIE-LCH	lch(38.10, 80.83, 299.65°)
OKLab	oklab(48.27% 0.0106 -0.2029)
OKLCH	oklch(48.27% 0.203 273)
XYZ	xyz(15.5041, 10.1462, 59.5219)
Luminance	0.1015 (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

#3F48CE #CEC53F

analogous

#3F8FCE #3F48CE #7E3FCE

triadic

#3F48CE #CE3F48 #48CE3F

tetradic

#3F48CE #CE3F8F #CEC53F #3FCE7E

square

#3F48CE #CE3F8F #CEC53F #3FCE7E

split-complementary

#3F48CE #CE7E3F #8FCE3F

monochromatic

#1E2375 #2A32A6 #3F48CE #7076DA #A1A5E7

Accessibility & contrast

On white

6.93

#3F48CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#3F48CE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F48CE

6.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F48CE	#FFFFFF	#000000	##FFFFFF
##3F48CE	1.00	6.93	3.03	6.93
#FFFFFF	6.93	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060D2

Deuteranopia (green-blind)

#0053CB

Tritanopia (blue-blind)

#006B84

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3f48ce;
/* rgb */ color: rgb(63, 72, 206);
/* oklch */ color: oklch(48.3% 0.203 273.0);

Tailwind

colors: {
  custom: {
    50: '#877bde',
    500: '#3f48ce',
    950: '#000000',
  },
}

SCSS

$custom: #3f48ce;
$custom-light: #877bde;
$custom-dark: #000000;

JSON

{
  "hex": "#3f48ce",
  "rgb": {
    "r": 63,
    "g": 72,
    "b": 206
  },
  "hsl": {
    "h": 236.224,
    "s": 59.336,
    "l": 52.745
  },
  "oklch": {
    "l": 0.48268,
    "c": 0.20319,
    "h": 273
  },
  "luminance": 0.10148
}

Semantic roles & 50–950 ramp

primary

#3F48CE

secondary

#D3CF95

accent

#D945E3

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #3F48CE

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

Preview Lab → · Contrast checker → · Palette generator →