#3F4BCE#3F4BCE

#3F4BCE is a mid, vivid blue. Relative luminance 0.105; OKLCH L 48.8% C 0.200 H 272.5°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#3F4BCE
RGB	rgb(63, 75, 206)
HSL	hsl(235, 59%, 53%)
HSV	hsv(235, 69%, 81%)
CMYK	cmyk(69.4%, 63.6%, 0%, 19.2%)
CIE-LAB	lab(38.80, 38.15, -69.11)
CIE-LCH	lch(38.80, 78.94, 298.90°)
OKLab	oklab(48.78% 0.0086 -0.1995)
OKLCH	oklch(48.78% 0.2 272.5)
XYZ	xyz(15.7028, 10.5436, 59.5881)
Luminance	0.1055 (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

#3F4BCE #CEC23F

analogous

#3F92CE #3F4BCE #7A3FCE

triadic

#3F4BCE #CE3F4B #4BCE3F

tetradic

#3F4BCE #CE3F92 #CEC23F #3FCE7A

square

#3F4BCE #CE3F92 #CEC23F #3FCE7A

split-complementary

#3F4BCE #CE7A3F #92CE3F

monochromatic

#1E2575 #2A35A6 #3F4BCE #7079DA #A1A6E7

Accessibility & contrast

On white

6.75

#3F4BCE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#3F4BCE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4BCE

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4BCE	#FFFFFF	#000000	##FFFFFF
##3F4BCE	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062D2

Deuteranopia (green-blind)

#0055CB

Tritanopia (blue-blind)

#006D85

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3f4bce;
/* rgb */ color: rgb(63, 75, 206);
/* oklch */ color: oklch(48.8% 0.200 272.5);

Tailwind

colors: {
  custom: {
    50: '#867dde',
    500: '#3f4bce',
    950: '#000000',
  },
}

SCSS

$custom: #3f4bce;
$custom-light: #867dde;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4bce",
  "rgb": {
    "r": 63,
    "g": 75,
    "b": 206
  },
  "hsl": {
    "h": 234.965,
    "s": 59.336,
    "l": 52.745
  },
  "oklch": {
    "l": 0.48778,
    "c": 0.19973,
    "h": 272.5
  },
  "luminance": 0.10545
}

Semantic roles & 50–950 ramp

primary

#3F4BCE

secondary

#D3CE95

accent

#D545E3

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #3F4BCE

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

Preview Lab → · Contrast checker → · Palette generator →