#3F33C8#3F33C8

#3F33C8 is a dark, highly saturated blue. Relative luminance 0.076; OKLCH L 44.5% C 0.218 H 276.4°. Best body text is #FFFFFF at 8.34:1 contrast (WCAG AA passes).

Color values

HEX	#3F33C8
RGB	rgb(63, 51, 200)
HSL	hsl(245, 59%, 49%)
HSV	hsv(245, 75%, 78%)
CMYK	cmyk(68.5%, 74.5%, 0%, 21.6%)
CIE-LAB	lab(33.12, 50.15, -74.95)
CIE-LCH	lch(33.12, 90.18, 303.78°)
OKLab	oklab(44.52% 0.0243 -0.2166)
OKLCH	oklch(44.52% 0.218 276.4)
XYZ	xyz(13.6556, 7.5933, 55.3784)
Luminance	0.0760 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 3.09

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F33C8 #BCC833

analogous

#3372C8 #3F33C8 #8A33C8

triadic

#3F33C8 #C83F33 #33C83F

tetradic

#3F33C8 #C83372 #BCC833 #33C88A

square

#3F33C8 #C83372 #BCC833 #33C88A

split-complementary

#3F33C8 #C88A33 #72C833

monochromatic

#201A66 #302797 #3F33C8 #6B61D7 #9992E3

Accessibility & contrast

On white

8.34

#3F33C8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#3F33C8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F33C8

8.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F33C8	#FFFFFF	#000000	##FFFFFF
##3F33C8	1.00	8.34	2.52	8.34
#FFFFFF	8.34	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054CC

Deuteranopia (green-blind)

#0047C5

Tritanopia (blue-blind)

#005E7B

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3f33c8;
/* rgb */ color: rgb(63, 51, 200);
/* oklch */ color: oklch(44.5% 0.218 276.4);

Tailwind

colors: {
  custom: {
    50: '#876dda',
    500: '#3f33c8',
    950: '#000000',
  },
}

SCSS

$custom: #3f33c8;
$custom-light: #876dda;
$custom-dark: #000000;

JSON

{
  "hex": "#3f33c8",
  "rgb": {
    "r": 63,
    "g": 51,
    "b": 200
  },
  "hsl": {
    "h": 244.832,
    "s": 59.363,
    "l": 49.216
  },
  "oklch": {
    "l": 0.44518,
    "c": 0.21799,
    "h": 276.4
  },
  "luminance": 0.07595
}

Semantic roles & 50–950 ramp

primary

#3F33C8

secondary

#C9CE89

accent

#E345D6

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0715

muted

#7E7A83

Preview Lab

Preview with #3F33C8

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

Preview Lab → · Contrast checker → · Palette generator →