#3F38AA#3F38AA

#3F38AA is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.4% C 0.175 H 278.6°. Best body text is #FFFFFF at 8.91:1 contrast (WCAG AA passes).

Color values

HEX	#3F38AA
RGB	rgb(63, 56, 170)
HSL	hsl(244, 50%, 44%)
HSV	hsv(244, 67%, 67%)
CMYK	cmyk(62.9%, 67.1%, 0%, 33.3%)
CIE-LAB	lab(31.32, 37.61, -60.17)
CIE-LCH	lch(31.32, 70.96, 302.01°)
OKLab	oklab(42.37% 0.0261 -0.1734)
OKLCH	oklch(42.37% 0.175 278.6)
XYZ	xyz(10.7174, 6.7866, 38.7676)
Luminance	0.0679 (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

#3F38AA #A3AA38

analogous

#386AAA #3F38AA #7838AA

triadic

#3F38AA #AA3F38 #38AA3F

tetradic

#3F38AA #AA386A #A3AA38 #38AA78

square

#3F38AA #AA386A #A3AA38 #38AA78

split-complementary

#3F38AA #AA7838 #6AAA38

monochromatic

#1D1A4E #2E297C #3F38AA #5E57C8 #8A85D7

Accessibility & contrast

On white

8.91

#3F38AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#3F38AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F38AA

8.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F38AA	#FFFFFF	#000000	##FFFFFF
##3F38AA	1.00	8.91	2.36	8.91
#FFFFFF	8.91	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EAE

Deuteranopia (green-blind)

#0045A8

Tritanopia (blue-blind)

#00566C

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3f38aa;
/* rgb */ color: rgb(63, 56, 170);
/* oklch */ color: oklch(42.4% 0.175 278.6);

Tailwind

colors: {
  custom: {
    50: '#816fc4',
    500: '#3f38aa',
    950: '#000000',
  },
}

SCSS

$custom: #3f38aa;
$custom-light: #816fc4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f38aa",
  "rgb": {
    "r": 63,
    "g": 56,
    "b": 170
  },
  "hsl": {
    "h": 243.684,
    "s": 50.442,
    "l": 44.314
  },
  "oklch": {
    "l": 0.42368,
    "c": 0.17539,
    "h": 278.6
  },
  "luminance": 0.06787
}

Semantic roles & 50–950 ramp

primary

#3F38AA

secondary

#BDC17D

accent

#DA4ED1

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3F38AA

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

Preview Lab → · Contrast checker → · Palette generator →