#3F46AA#3F46AA

#3F46AA is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.8% C 0.158 H 275.0°. Best body text is #FFFFFF at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#3F46AA
RGB	rgb(63, 70, 170)
HSL	hsl(236, 46%, 46%)
HSV	hsv(236, 63%, 67%)
CMYK	cmyk(62.9%, 58.8%, 0%, 33.3%)
CIE-LAB	lab(34.68, 28.81, -54.69)
CIE-LCH	lch(34.68, 61.82, 297.78°)
OKLab	oklab(44.83% 0.0138 -0.1573)
OKLCH	oklch(44.83% 0.158 275)
XYZ	xyz(11.4934, 8.3384, 39.0262)
Luminance	0.0834 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F46AA #AAA33F

analogous

#3F7BAA #3F46AA #6D3FAA

triadic

#3F46AA #AA3F46 #46AA3F

tetradic

#3F46AA #AA3F7B #AAA33F #3FAA6D

square

#3F46AA #AA3F7B #AAA33F #3FAA6D

split-complementary

#3F46AA #AA6D3F #7BAA3F

monochromatic

#1E2151 #2E347D #3F46AA #6268C5 #8E93D5

Accessibility & contrast

On white

7.87

#3F46AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#3F46AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F46AA

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F46AA	#FFFFFF	#000000	##FFFFFF
##3F46AA	1.00	7.87	2.67	7.87
#FFFFFF	7.87	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056AD

Deuteranopia (green-blind)

#004DA8

Tritanopia (blue-blind)

#005E71

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3f46aa;
/* rgb */ color: rgb(63, 70, 170);
/* oklch */ color: oklch(44.8% 0.158 275.0);

Tailwind

colors: {
  custom: {
    50: '#8079c4',
    500: '#3f46aa',
    950: '#000000',
  },
}

SCSS

$custom: #3f46aa;
$custom-light: #8079c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f46aa",
  "rgb": {
    "r": 63,
    "g": 70,
    "b": 170
  },
  "hsl": {
    "h": 236.075,
    "s": 45.923,
    "l": 45.686
  },
  "oklch": {
    "l": 0.44834,
    "c": 0.15786,
    "h": 275
  },
  "luminance": 0.08339
}

Semantic roles & 50–950 ramp

primary

#3F46AA

secondary

#C0BC85

accent

#CD52D6

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3F46AA

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

Preview Lab → · Contrast checker → · Palette generator →