#3F38AC#3F38AC

#3F38AC is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.5% C 0.178 H 278.4°. Best body text is #FFFFFF at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#3F38AC
RGB	rgb(63, 56, 172)
HSL	hsl(244, 51%, 45%)
HSV	hsv(244, 67%, 67%)
CMYK	cmyk(63.4%, 67.4%, 0%, 32.5%)
CIE-LAB	lab(31.49, 38.27, -61.08)
CIE-LCH	lch(31.49, 72.08, 302.07°)
OKLab	oklab(42.55% 0.0259 -0.1761)
OKLCH	oklch(42.55% 0.178 278.4)
XYZ	xyz(10.9081, 6.8628, 39.7716)
Luminance	0.0686 (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

#3F38AC #A5AC38

analogous

#386BAC #3F38AC #7938AC

triadic

#3F38AC #AC3F38 #38AC3F

tetradic

#3F38AC #AC386B #A5AC38 #38AC79

square

#3F38AC #AC386B #A5AC38 #38AC79

split-complementary

#3F38AC #AC7938 #6BAC38

monochromatic

#1D1A50 #2E297E #3F38AC #5F58C9 #8C87D8

Accessibility & contrast

On white

8.85

#3F38AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#3F38AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F38AC

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F38AC	#FFFFFF	#000000	##FFFFFF
##3F38AC	1.00	8.85	2.37	8.85
#FFFFFF	8.85	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB0

Deuteranopia (green-blind)

#0045AA

Tritanopia (blue-blind)

#00566D

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3f38ac;
/* rgb */ color: rgb(63, 56, 172);
/* oklch */ color: oklch(42.5% 0.178 278.4);

Tailwind

colors: {
  custom: {
    50: '#816fc6',
    500: '#3f38ac',
    950: '#000000',
  },
}

SCSS

$custom: #3f38ac;
$custom-light: #816fc6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f38ac",
  "rgb": {
    "r": 63,
    "g": 56,
    "b": 172
  },
  "hsl": {
    "h": 243.621,
    "s": 50.877,
    "l": 44.706
  },
  "oklch": {
    "l": 0.4255,
    "c": 0.178,
    "h": 278.4
  },
  "luminance": 0.06864
}

Semantic roles & 50–950 ramp

primary

#3F38AC

secondary

#BEC27E

accent

#DA4DD2

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3F38AC

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

Preview Lab → · Contrast checker → · Palette generator →