#3F418F#3F418F

#3F418F is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.8% C 0.126 H 278.3°. Best body text is #FFFFFF at 8.88:1 contrast (WCAG AA passes).

Color values

HEX	#3F418F
RGB	rgb(63, 65, 143)
HSL	hsl(239, 39%, 40%)
HSV	hsv(239, 56%, 56%)
CMYK	cmyk(55.9%, 54.5%, 0%, 43.9%)
CIE-LAB	lab(31.39, 22.74, -43.67)
CIE-LCH	lch(31.39, 49.24, 297.50°)
OKLab	oklab(41.76% 0.0183 -0.1249)
OKLCH	oklch(41.76% 0.126 278.3)
XYZ	xyz(8.8966, 6.8199, 26.8289)
Luminance	0.0682 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F418F #8F8D3F

analogous

#3F698F #3F418F #653F8F

triadic

#3F418F #8F3F41 #418F3F

tetradic

#3F418F #8F3F69 #8F8D3F #3F8F65

square

#3F418F #8F3F69 #8F8D3F #3F8F65

split-complementary

#3F418F #8F653F #698F3F

monochromatic

#1A1A3A #2C2E65 #3F418F #5659B5 #8183C7

Accessibility & contrast

On white

8.88

#3F418F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#3F418F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F418F

8.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F418F	#FFFFFF	#000000	##FFFFFF
##3F418F	1.00	8.88	2.36	8.88
#FFFFFF	8.88	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#144D92

Deuteranopia (green-blind)

#04478D

Tritanopia (blue-blind)

#185361

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3f418f;
/* rgb */ color: rgb(63, 65, 143);
/* oklch */ color: oklch(41.8% 0.126 278.3);

Tailwind

colors: {
  custom: {
    50: '#7b75b0',
    500: '#3f418f',
    950: '#000000',
  },
}

SCSS

$custom: #3f418f;
$custom-light: #7b75b0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f418f",
  "rgb": {
    "r": 63,
    "g": 65,
    "b": 143
  },
  "hsl": {
    "h": 238.5,
    "s": 38.835,
    "l": 40.392
  },
  "oklch": {
    "l": 0.41756,
    "c": 0.12622,
    "h": 278.3
  },
  "luminance": 0.06821
}

Semantic roles & 50–950 ramp

primary

#3F418F

secondary

#B2B078

accent

#CC59CF

background

#F7F7FA

surface

#EEEDF5

border

#C9C8CF

text

#0A0810

muted

#7C7B7F

Preview Lab

Preview with #3F418F

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

Preview Lab → · Contrast checker → · Palette generator →