#3F35B5#3F35B5

#3F35B5 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.9% C 0.193 H 278.0°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#3F35B5
RGB	rgb(63, 53, 181)
HSL	hsl(245, 55%, 46%)
HSV	hsv(245, 71%, 71%)
CMYK	cmyk(65.2%, 70.7%, 0%, 29%)
CIE-LAB	lab(31.67, 42.99, -66.16)
CIE-LCH	lch(31.67, 78.90, 303.01°)
OKLab	oklab(42.93% 0.0268 -0.191)
OKLCH	oklch(42.93% 0.193 278)
XYZ	xyz(11.6608, 6.9382, 44.4318)
Luminance	0.0694 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 3.82

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F35B5 #ABB535

analogous

#356BB5 #3F35B5 #7F35B5

triadic

#3F35B5 #B53F35 #35B53F

tetradic

#3F35B5 #B5356B #ABB535 #35B57F

square

#3F35B5 #B5356B #ABB535 #35B57F

split-complementary

#3F35B5 #B57F35 #6BB535

monochromatic

#1E1956 #2F2786 #3F35B5 #6259CE #8F88DC

Accessibility & contrast

On white

8.79

#3F35B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#3F35B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F35B5

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F35B5	#FFFFFF	#000000	##FFFFFF
##3F35B5	1.00	8.79	2.39	8.79
#FFFFFF	8.79	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B9

Deuteranopia (green-blind)

#0045B3

Tritanopia (blue-blind)

#005871

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3f35b5;
/* rgb */ color: rgb(63, 53, 181);
/* oklch */ color: oklch(42.9% 0.193 278.0);

Tailwind

colors: {
  custom: {
    50: '#836ecc',
    500: '#3f35b5',
    950: '#000000',
  },
}

SCSS

$custom: #3f35b5;
$custom-light: #836ecc;
$custom-dark: #000000;

JSON

{
  "hex": "#3f35b5",
  "rgb": {
    "r": 63,
    "g": 53,
    "b": 181
  },
  "hsl": {
    "h": 244.688,
    "s": 54.701,
    "l": 45.882
  },
  "oklch": {
    "l": 0.42926,
    "c": 0.19285,
    "h": 278
  },
  "luminance": 0.06939
}

Semantic roles & 50–950 ramp

primary

#3F35B5

secondary

#C1C680

accent

#DE4AD2

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3F35B5

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

Preview Lab → · Contrast checker → · Palette generator →