#3F339D#3F339D

#3F339D is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.4% C 0.164 H 281.2°. Best body text is #FFFFFF at 9.67:1 contrast (WCAG AA passes).

Color values

HEX	#3F339D
RGB	rgb(63, 51, 157)
HSL	hsl(247, 51%, 41%)
HSV	hsv(247, 68%, 62%)
CMYK	cmyk(59.9%, 67.5%, 0%, 38.4%)
CIE-LAB	lab(29.05, 36.36, -56.03)
CIE-LCH	lch(29.05, 66.79, 302.98°)
OKLab	oklab(40.38% 0.032 -0.1613)
OKLCH	oklch(40.38% 0.164 281.2)
XYZ	xyz(9.3176, 5.8581, 32.5315)
Luminance	0.0586 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.80

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F339D #919D33

analogous

#335C9D #3F339D #74339D

triadic

#3F339D #9D3F33 #339D3F

tetradic

#3F339D #9D335C #919D33 #339D74

square

#3F339D #9D335C #919D33 #339D74

split-complementary

#3F339D #9D7433 #5C9D33

monochromatic

#1A1541 #2C246F #3F339D #5749C4 #8277D3

Accessibility & contrast

On white

9.67

#3F339D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#3F339D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F339D

9.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F339D	#FFFFFF	#000000	##FFFFFF
##3F339D	1.00	9.67	2.17	9.67
#FFFFFF	9.67	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A0

Deuteranopia (green-blind)

#00419B

Tritanopia (blue-blind)

#004E63

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3f339d;
/* rgb */ color: rgb(63, 51, 157);
/* oklch */ color: oklch(40.4% 0.164 281.2);

Tailwind

colors: {
  custom: {
    50: '#7f6cbb',
    500: '#3f339d',
    950: '#000000',
  },
}

SCSS

$custom: #3f339d;
$custom-light: #7f6cbb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f339d",
  "rgb": {
    "r": 63,
    "g": 51,
    "b": 157
  },
  "hsl": {
    "h": 246.792,
    "s": 50.962,
    "l": 40.784
  },
  "oklch": {
    "l": 0.40378,
    "c": 0.16443,
    "h": 281.2
  },
  "luminance": 0.05859
}

Semantic roles & 50–950 ramp

primary

#3F339D

secondary

#B3BB70

accent

#DA4DCA

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #3F339D

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

Preview Lab → · Contrast checker → · Palette generator →