#3F24DB#3F24DB

#3F24DB is a dark, highly saturated blue. Relative luminance 0.074; OKLCH L 44.9% C 0.251 H 275.9°. Best body text is #FFFFFF at 8.45:1 contrast (WCAG AA passes).

Color values

HEX	#3F24DB
RGB	rgb(63, 36, 219)
HSL	hsl(249, 72%, 50%)
HSV	hsv(249, 84%, 86%)
CMYK	cmyk(71.2%, 83.6%, 0%, 14.1%)
CIE-LAB	lab(32.77, 62.74, -86.55)
CIE-LCH	lch(32.77, 106.90, 305.94°)
OKLab	oklab(44.88% 0.0256 -0.2501)
OKLCH	oklch(44.88% 0.251 275.9)
XYZ	xyz(15.4628, 7.4315, 67.6236)
Luminance	0.0743 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F24DB #C0DB24

analogous

#2465DB #3F24DB #9A24DB

triadic

#3F24DB #DB3F24 #24DB3F

tetradic

#3F24DB #DB2465 #C0DB24 #24DB9A

square

#3F24DB #DB2465 #C0DB24 #24DB9A

split-complementary

#3F24DB #DB9A24 #65DB24

monochromatic

#211372 #301BA6 #3F24DB #6D59E4 #9B8DEC

Accessibility & contrast

On white

8.45

#3F24DB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#3F24DB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F24DB

8.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F24DB	#FFFFFF	#000000	##FFFFFF
##3F24DB	1.00	8.45	2.49	8.45
#FFFFFF	8.45	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055E0

Deuteranopia (green-blind)

#0045D8

Tritanopia (blue-blind)

#006083

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3f24db;
/* rgb */ color: rgb(63, 36, 219);
/* oklch */ color: oklch(44.9% 0.251 275.9);

Tailwind

colors: {
  custom: {
    50: '#8c66e8',
    500: '#3f24db',
    950: '#000000',
  },
}

SCSS

$custom: #3f24db;
$custom-light: #8c66e8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f24db",
  "rgb": {
    "r": 63,
    "g": 36,
    "b": 219
  },
  "hsl": {
    "h": 248.852,
    "s": 71.765,
    "l": 50
  },
  "oklch": {
    "l": 0.44875,
    "c": 0.25144,
    "h": 275.9
  },
  "luminance": 0.07433
}

Semantic roles & 50–950 ramp

primary

#3F24DB

secondary

#CAD684

accent

#EE39D4

background

#F9F6FE

surface

#F2EBFD

border

#CCC6D5

text

#0E0616

muted

#7E7A84

Preview Lab

Preview with #3F24DB

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

Preview Lab → · Contrast checker → · Palette generator →