#3F28B6#3F28B6

#3F28B6 is a dark, highly saturated blue. Relative luminance 0.060; OKLCH L 41.3% C 0.207 H 279.6°. Best body text is #FFFFFF at 9.59:1 contrast (WCAG AA passes).

Color values

HEX	#3F28B6
RGB	rgb(63, 40, 182)
HSL	hsl(250, 64%, 44%)
HSV	hsv(250, 78%, 71%)
CMYK	cmyk(65.4%, 78%, 0%, 28.6%)
CIE-LAB	lab(29.29, 50.28, -70.67)
CIE-LCH	lch(29.29, 86.74, 305.43°)
OKLab	oklab(41.28% 0.0346 -0.204)
OKLCH	oklch(41.28% 0.207 279.6)
XYZ	xyz(11.2495, 5.9508, 44.8027)
Luminance	0.0595 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.66

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F28B6 #9FB628

analogous

#2858B6 #3F28B6 #8628B6

triadic

#3F28B6 #B63F28 #28B63F

tetradic

#3F28B6 #B62858 #9FB628 #28B686

square

#3F28B6 #B62858 #9FB628 #28B686

split-complementary

#3F28B6 #B68628 #58B628

monochromatic

#1C1252 #2E1D84 #3F28B6 #5D45D6 #8877E1

Accessibility & contrast

On white

9.59

#3F28B6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#3F28B6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F28B6

9.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F28B6	#FFFFFF	#000000	##FFFFFF
##3F28B6	1.00	9.59	2.19	9.59
#FFFFFF	9.59	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004ABA

Deuteranopia (green-blind)

#003FB3

Tritanopia (blue-blind)

#00526E

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #3f28b6;
/* rgb */ color: rgb(63, 40, 182);
/* oklch */ color: oklch(41.3% 0.207 279.6);

Tailwind

colors: {
  custom: {
    50: '#8466cd',
    500: '#3f28b6',
    950: '#000000',
  },
}

SCSS

$custom: #3f28b6;
$custom-light: #8466cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f28b6",
  "rgb": {
    "r": 63,
    "g": 40,
    "b": 182
  },
  "hsl": {
    "h": 249.718,
    "s": 63.964,
    "l": 43.529
  },
  "oklch": {
    "l": 0.41275,
    "c": 0.20697,
    "h": 279.6
  },
  "luminance": 0.05952
}

Semantic roles & 50–950 ramp

primary

#3F28B6

secondary

#BBC971

accent

#E741CC

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #3F28B6

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

Preview Lab → · Contrast checker → · Palette generator →