#3431BB#3431BB

#3431BB is a dark, highly saturated blue. Relative luminance 0.065; OKLCH L 42.2% C 0.207 H 273.9°. Best body text is #FFFFFF at 9.12:1 contrast (WCAG AA passes).

Color values

HEX	#3431BB
RGB	rgb(52, 49, 187)
HSL	hsl(241, 58%, 46%)
HSV	hsv(241, 74%, 73%)
CMYK	cmyk(72.2%, 73.8%, 0%, 26.7%)
CIE-LAB	lab(30.67, 45.99, -71.38)
CIE-LCH	lch(30.67, 84.91, 302.79°)
OKLab	oklab(42.2% 0.0142 -0.2065)
OKLCH	oklch(42.2% 0.207 273.9)
XYZ	xyz(11.4811, 6.5134, 47.6562)
Luminance	0.0651 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Sapphire (survey)

#2138AB

ΔE00 3.95

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3431BB #B8BB31

analogous

#3173BB #3431BB #7931BB

triadic

#3431BB #BB3431 #31BB34

tetradic

#3431BB #BB3173 #B8BB31 #31BB79

square

#3431BB #BB3173 #B8BB31 #31BB79

split-complementary

#3431BB #BB7931 #73BB31

monochromatic

#19185A #27248B #3431BB #5956D3 #8987E0

Accessibility & contrast

On white

9.12

#3431BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#3431BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3431BB

9.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3431BB	#FFFFFF	#000000	##FFFFFF
##3431BB	1.00	9.12	2.30	9.12
#FFFFFF	9.12	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FBF

Deuteranopia (green-blind)

#0042B9

Tritanopia (blue-blind)

#005973

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3431bb;
/* rgb */ color: rgb(52, 49, 187);
/* oklch */ color: oklch(42.2% 0.207 273.9);

Tailwind

colors: {
  custom: {
    50: '#806bd1',
    500: '#3431bb',
    950: '#000000',
  },
}

SCSS

$custom: #3431bb;
$custom-light: #806bd1;
$custom-dark: #000000;

JSON

{
  "hex": "#3431bb",
  "rgb": {
    "r": 52,
    "g": 49,
    "b": 187
  },
  "hsl": {
    "h": 241.304,
    "s": 58.475,
    "l": 46.275
  },
  "oklch": {
    "l": 0.42197,
    "c": 0.20696,
    "h": 273.9
  },
  "luminance": 0.06515
}

Semantic roles & 50–950 ramp

primary

#3431BB

secondary

#C8C97F

accent

#E246DE

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3431BB

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

Preview Lab → · Contrast checker → · Palette generator →