#3F4ECE#3F4ECE

#3F4ECE is a mid, vivid blue. Relative luminance 0.110; OKLCH L 49.3% C 0.196 H 271.9°. Best body text is #FFFFFF at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#3F4ECE
RGB	rgb(63, 78, 206)
HSL	hsl(234, 59%, 53%)
HSV	hsv(234, 69%, 81%)
CMYK	cmyk(69.4%, 62.1%, 0%, 19.2%)
CIE-LAB	lab(39.51, 36.28, -67.94)
CIE-LCH	lch(39.51, 77.02, 298.10°)
OKLab	oklab(49.3% 0.0064 -0.1961)
OKLCH	oklch(49.3% 0.196 271.9)
XYZ	xyz(15.9111, 10.9602, 59.6576)
Luminance	0.1096 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4ECE #CEBF3F

analogous

#3F96CE #3F4ECE #773FCE

triadic

#3F4ECE #CE3F4E #4ECE3F

tetradic

#3F4ECE #CE3F96 #CEBF3F #3FCE77

square

#3F4ECE #CE3F96 #CEBF3F #3FCE77

split-complementary

#3F4ECE #CE773F #96CE3F

monochromatic

#1E2775 #2A37A6 #3F4ECE #707BDA #A1A8E7

Accessibility & contrast

On white

6.58

#3F4ECE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#3F4ECE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4ECE

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4ECE	#FFFFFF	#000000	##FFFFFF
##3F4ECE	1.00	6.58	3.19	6.58
#FFFFFF	6.58	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064D2

Deuteranopia (green-blind)

#0057CC

Tritanopia (blue-blind)

#006F87

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3f4ece;
/* rgb */ color: rgb(63, 78, 206);
/* oklch */ color: oklch(49.3% 0.196 271.9);

Tailwind

colors: {
  custom: {
    50: '#867fde',
    500: '#3f4ece',
    950: '#000000',
  },
}

SCSS

$custom: #3f4ece;
$custom-light: #867fde;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4ece",
  "rgb": {
    "r": 63,
    "g": 78,
    "b": 206
  },
  "hsl": {
    "h": 233.706,
    "s": 59.336,
    "l": 52.745
  },
  "oklch": {
    "l": 0.49301,
    "c": 0.19622,
    "h": 271.9
  },
  "luminance": 0.10962
}

Semantic roles & 50–950 ramp

primary

#3F4ECE

secondary

#D3CD95

accent

#D245E3

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #3F4ECE

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

Preview Lab → · Contrast checker → · Palette generator →