#3F4FD2#3F4FD2

#3F4FD2 is a mid, highly saturated blue. Relative luminance 0.113; OKLCH L 49.8% C 0.200 H 271.6°. Best body text is #FFFFFF at 6.44:1 contrast (WCAG AA passes).

Color values

HEX	#3F4FD2
RGB	rgb(63, 79, 210)
HSL	hsl(233, 62%, 54%)
HSV	hsv(233, 70%, 82%)
CMYK	cmyk(70%, 62.4%, 0%, 17.6%)
CIE-LAB	lab(40.08, 37.05, -69.32)
CIE-LCH	lch(40.08, 78.60, 298.12°)
OKLab	oklab(49.82% 0.0055 -0.2001)
OKLCH	oklch(49.82% 0.2 271.6)
XYZ	xyz(16.4748, 11.3002, 62.2732)
Luminance	0.1130 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4FD2 #D2C23F

analogous

#3F98D2 #3F4FD2 #783FD2

triadic

#3F4FD2 #D23F4F #4FD23F

tetradic

#3F4FD2 #D23F98 #D2C23F #3FD278

square

#3F4FD2 #D23F98 #D2C23F #3FD278

split-complementary

#3F4FD2 #D2783F #98D23F

monochromatic

#1D277A #2837AC #3F4FD2 #717CDE #A2AAE9

Accessibility & contrast

On white

6.44

#3F4FD2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#3F4FD2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4FD2

6.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4FD2	#FFFFFF	#000000	##FFFFFF
##3F4FD2	1.00	6.44	3.26	6.44
#FFFFFF	6.44	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065D6

Deuteranopia (green-blind)

#0058CF

Tritanopia (blue-blind)

#007189

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3f4fd2;
/* rgb */ color: rgb(63, 79, 210);
/* oklch */ color: oklch(49.8% 0.200 271.6);

Tailwind

colors: {
  custom: {
    50: '#8780e1',
    500: '#3f4fd2',
    950: '#000000',
  },
}

SCSS

$custom: #3f4fd2;
$custom-light: #8780e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4fd2",
  "rgb": {
    "r": 63,
    "g": 79,
    "b": 210
  },
  "hsl": {
    "h": 233.469,
    "s": 62.025,
    "l": 53.529
  },
  "oklch": {
    "l": 0.49821,
    "c": 0.20022,
    "h": 271.6
  },
  "luminance": 0.11302
}

Semantic roles & 50–950 ramp

primary

#3F4FD2

secondary

#D6CF97

accent

#D343E5

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #3F4FD2

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

Preview Lab → · Contrast checker → · Palette generator →