#3F43D2#3F43D2

#3F43D2 is a mid, highly saturated blue. Relative luminance 0.097; OKLCH L 47.8% C 0.214 H 273.6°. Best body text is #FFFFFF at 7.13:1 contrast (WCAG AA passes).

Color values

HEX	#3F43D2
RGB	rgb(63, 67, 210)
HSL	hsl(238, 62%, 54%)
HSV	hsv(238, 70%, 82%)
CMYK	cmyk(70%, 68.1%, 0%, 17.6%)
CIE-LAB	lab(37.34, 44.35, -73.81)
CIE-LCH	lch(37.34, 86.11, 301.00°)
OKLab	oklab(47.82% 0.0135 -0.2133)
OKLCH	oklch(47.82% 0.214 273.6)
XYZ	xyz(15.6860, 9.7227, 62.0103)
Luminance	0.0972 (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

#3F43D2 #D2CE3F

analogous

#3F8CD2 #3F43D2 #843FD2

triadic

#3F43D2 #D23F43 #43D23F

tetradic

#3F43D2 #D23F8C #D2CE3F #3FD284

square

#3F43D2 #D23F8C #D2CE3F #3FD284

split-complementary

#3F43D2 #D2843F #8CD23F

monochromatic

#1D1F7A #282CAC #3F43D2 #7174DE #A2A4E9

Accessibility & contrast

On white

7.13

#3F43D2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#3F43D2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F43D2

7.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F43D2	#FFFFFF	#000000	##FFFFFF
##3F43D2	1.00	7.13	2.94	7.13
#FFFFFF	7.13	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FD6

Deuteranopia (green-blind)

#0051CF

Tritanopia (blue-blind)

#006A85

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #3f43d2;
/* rgb */ color: rgb(63, 67, 210);
/* oklch */ color: oklch(47.8% 0.214 273.6);

Tailwind

colors: {
  custom: {
    50: '#8878e1',
    500: '#3f43d2',
    950: '#000000',
  },
}

SCSS

$custom: #3f43d2;
$custom-light: #8878e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f43d2",
  "rgb": {
    "r": 63,
    "g": 67,
    "b": 210
  },
  "hsl": {
    "h": 238.367,
    "s": 62.025,
    "l": 53.529
  },
  "oklch": {
    "l": 0.47822,
    "c": 0.21377,
    "h": 273.6
  },
  "luminance": 0.09724
}

Semantic roles & 50–950 ramp

primary

#3F43D2

secondary

#D6D497

accent

#E143E5

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #3F43D2

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

Preview Lab → · Contrast checker → · Palette generator →