#3F28CA#3F28CA

#3F28CA is a dark, highly saturated blue. Relative luminance 0.068; OKLCH L 43.4% C 0.230 H 277.3°. Best body text is #FFFFFF at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#3F28CA
RGB	rgb(63, 40, 202)
HSL	hsl(249, 67%, 47%)
HSV	hsv(249, 80%, 79%)
CMYK	cmyk(68.8%, 80.2%, 0%, 20.8%)
CIE-LAB	lab(31.43, 56.20, -78.91)
CIE-LCH	lch(31.43, 96.88, 305.46°)
OKLab	oklab(43.4% 0.0291 -0.228)
OKLCH	oklch(43.4% 0.23 277.3)
XYZ	xyz(13.4659, 6.8374, 56.4758)
Luminance	0.0684 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 4.72

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F28CA #B3CA28

analogous

#2862CA #3F28CA #9028CA

triadic

#3F28CA #CA3F28 #28CA3F

tetradic

#3F28CA #CA2862 #B3CA28 #28CA90

square

#3F28CA #CA2862 #B3CA28 #28CA90

split-complementary

#3F28CA #CA9028 #62CA28

monochromatic

#1F1464 #2F1E97 #3F28CA #6652DD #9385E7

Accessibility & contrast

On white

8.87

#3F28CA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#3F28CA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F28CA

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F28CA	#FFFFFF	#000000	##FFFFFF
##3F28CA	1.00	8.87	2.37	8.87
#FFFFFF	8.87	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050CE

Deuteranopia (green-blind)

#0043C7

Tritanopia (blue-blind)

#005A7A

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3f28ca;
/* rgb */ color: rgb(63, 40, 202);
/* oklch */ color: oklch(43.4% 0.230 277.3);

Tailwind

colors: {
  custom: {
    50: '#8867dc',
    500: '#3f28ca',
    950: '#000000',
  },
}

SCSS

$custom: #3f28ca;
$custom-light: #8867dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3f28ca",
  "rgb": {
    "r": 63,
    "g": 40,
    "b": 202
  },
  "hsl": {
    "h": 248.519,
    "s": 66.942,
    "l": 47.451
  },
  "oklch": {
    "l": 0.434,
    "c": 0.22986,
    "h": 277.3
  },
  "luminance": 0.06839
}

Semantic roles & 50–950 ramp

primary

#3F28CA

secondary

#C4D07E

accent

#EA3ED1

background

#F9F6FD

surface

#F2EBFB

border

#CCC6D4

text

#0D0615

muted

#7E7A83

Preview Lab

Preview with #3F28CA

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

Preview Lab → · Contrast checker → · Palette generator →