#3F308C#3F308C

#3F308C is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.4% C 0.146 H 284.7°. Best body text is #FFFFFF at 10.43:1 contrast (WCAG AA passes).

Color values

HEX	#3F308C
RGB	rgb(63, 48, 140)
HSL	hsl(250, 49%, 37%)
HSV	hsv(250, 66%, 55%)
CMYK	cmyk(55%, 65.7%, 0%, 45.1%)
CIE-LAB	lab(26.92, 32.66, -49.08)
CIE-LCH	lch(26.92, 58.95, 303.64°)
OKLab	oklab(38.38% 0.0369 -0.1409)
OKLCH	oklch(38.38% 0.146 284.7)
XYZ	xyz(7.8390, 5.0637, 25.3702)
Luminance	0.0506 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F308C #7D8C30

analogous

#304F8C #3F308C #6D308C

triadic

#3F308C #8C3F30 #308C3F

tetradic

#3F308C #8C304F #7D8C30 #308C6D

square

#3F308C #8C304F #7D8C30 #308C6D

split-complementary

#3F308C #8C6D30 #4F8C30

monochromatic

#161131 #2A205E #3F308C #5440BA #7A6ACC

Accessibility & contrast

On white

10.43

#3F308C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#3F308C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F308C

10.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F308C	#FFFFFF	#000000	##FFFFFF
##3F308C	1.00	10.43	2.01	10.43
#FFFFFF	10.43	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00428F

Deuteranopia (green-blind)

#003D8A

Tritanopia (blue-blind)

#1E4759

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #3f308c;
/* rgb */ color: rgb(63, 48, 140);
/* oklch */ color: oklch(38.4% 0.146 284.7);

Tailwind

colors: {
  custom: {
    50: '#7c69ae',
    500: '#3f308c',
    950: '#000000',
  },
}

SCSS

$custom: #3f308c;
$custom-light: #7c69ae;
$custom-dark: #000000;

JSON

{
  "hex": "#3f308c",
  "rgb": {
    "r": 63,
    "g": 48,
    "b": 140
  },
  "hsl": {
    "h": 249.783,
    "s": 48.936,
    "l": 36.863
  },
  "oklch": {
    "l": 0.38379,
    "c": 0.14563,
    "h": 284.7
  },
  "luminance": 0.05064
}

Semantic roles & 50–950 ramp

primary

#3F308C

secondary

#A6B364

accent

#D84FC2

background

#F7F6FA

surface

#EEEBF4

border

#C9C6CE

text

#0A0610

muted

#7C7A7F

Preview Lab

Preview with #3F308C

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

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