#3F28D0#3F28D0

#3F28D0 is a dark, highly saturated blue. Relative luminance 0.071; OKLCH L 44.0% C 0.237 H 276.7°. Best body text is #FFFFFF at 8.66:1 contrast (WCAG AA passes).

Color values

HEX	#3F28D0
RGB	rgb(63, 40, 208)
HSL	hsl(248, 68%, 49%)
HSV	hsv(248, 81%, 82%)
CMYK	cmyk(69.7%, 80.8%, 0%, 18.4%)
CIE-LAB	lab(32.09, 57.94, -81.31)
CIE-LCH	lch(32.09, 99.84, 305.47°)
OKLab	oklab(44.05% 0.0274 -0.235)
OKLCH	oklch(44.05% 0.237 276.7)
XYZ	xyz(14.1901, 7.1271, 60.2901)
Luminance	0.0713 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F28D0 #B9D028

analogous

#2865D0 #3F28D0 #9328D0

triadic

#3F28D0 #D03F28 #28D03F

tetradic

#3F28D0 #D02865 #B9D028 #28D093

square

#3F28D0 #D02865 #B9D028 #28D093

split-complementary

#3F28D0 #D09328 #65D028

monochromatic

#201469 #2F1E9D #3F28D0 #6957DF #978AE8

Accessibility & contrast

On white

8.66

#3F28D0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#3F28D0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F28D0

8.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F28D0	#FFFFFF	#000000	##FFFFFF
##3F28D0	1.00	8.66	2.43	8.66
#FFFFFF	8.66	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052D5

Deuteranopia (green-blind)

#0044CD

Tritanopia (blue-blind)

#005D7D

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3f28d0;
/* rgb */ color: rgb(63, 40, 208);
/* oklch */ color: oklch(44.0% 0.237 276.7);

Tailwind

colors: {
  custom: {
    50: '#8a68e0',
    500: '#3f28d0',
    950: '#000000',
  },
}

SCSS

$custom: #3f28d0;
$custom-light: #8a68e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f28d0",
  "rgb": {
    "r": 63,
    "g": 40,
    "b": 208
  },
  "hsl": {
    "h": 248.214,
    "s": 67.742,
    "l": 48.627
  },
  "oklch": {
    "l": 0.4405,
    "c": 0.23658,
    "h": 276.7
  },
  "luminance": 0.07128
}

Semantic roles & 50–950 ramp

primary

#3F28D0

secondary

#C7D282

accent

#EB3DD3

background

#F9F6FD

surface

#F2EBFB

border

#CCC6D4

text

#0E0615

muted

#7E7A83

Preview Lab

Preview with #3F28D0

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

Preview Lab → · Contrast checker → · Palette generator →