#3F30AE#3F30AE

#3F30AE is a dark, vivid blue. Relative luminance 0.062; OKLCH L 41.5% C 0.190 H 279.6°. Best body text is #FFFFFF at 9.35:1 contrast (WCAG AA passes).

Color values

HEX	#3F30AE
RGB	rgb(63, 48, 174)
HSL	hsl(247, 57%, 44%)
HSV	hsv(247, 72%, 68%)
CMYK	cmyk(63.8%, 72.4%, 0%, 31.8%)
CIE-LAB	lab(29.98, 43.59, -64.77)
CIE-LCH	lch(29.98, 78.07, 303.94°)
OKLab	oklab(41.52% 0.0315 -0.1869)
OKLCH	oklch(41.52% 0.19 279.6)
XYZ	xyz(10.7444, 6.2258, 40.6717)
Luminance	0.0623 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F30AE #9FAE30

analogous

#3060AE #3F30AE #7E30AE

triadic

#3F30AE #AE3F30 #30AE3F

tetradic

#3F30AE #AE3060 #9FAE30 #30AE7E

square

#3F30AE #AE3060 #9FAE30 #30AE7E

split-complementary

#3F30AE #AE7E30 #60AE30

monochromatic

#1C164E #2E237E #3F30AE #5D4DCE #887DDB

Accessibility & contrast

On white

9.35

#3F30AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#3F30AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F30AE

9.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F30AE	#FFFFFF	#000000	##FFFFFF
##3F30AE	1.00	9.35	2.25	9.35
#FFFFFF	9.35	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BB2

Deuteranopia (green-blind)

#0042AC

Tritanopia (blue-blind)

#00536C

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #3f30ae;
/* rgb */ color: rgb(63, 48, 174);
/* oklch */ color: oklch(41.5% 0.190 279.6);

Tailwind

colors: {
  custom: {
    50: '#826ac7',
    500: '#3f30ae',
    950: '#000000',
  },
}

SCSS

$custom: #3f30ae;
$custom-light: #826ac7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f30ae",
  "rgb": {
    "r": 63,
    "g": 48,
    "b": 174
  },
  "hsl": {
    "h": 247.143,
    "s": 56.757,
    "l": 43.529
  },
  "oklch": {
    "l": 0.41518,
    "c": 0.18952,
    "h": 279.6
  },
  "luminance": 0.06227
}

Semantic roles & 50–950 ramp

primary

#3F30AE

secondary

#BBC476

accent

#E048CE

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #3F30AE

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

Preview Lab → · Contrast checker → · Palette generator →