#343FB6#343FB6

#343FB6 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.9% C 0.185 H 272.0°. Best body text is #FFFFFF at 8.29:1 contrast (WCAG AA passes).

Color values

HEX	#343FB6
RGB	rgb(52, 63, 182)
HSL	hsl(235, 56%, 46%)
HSV	hsv(235, 71%, 71%)
CMYK	cmyk(71.4%, 65.4%, 0%, 28.6%)
CIE-LAB	lab(33.27, 35.90, -64.16)
CIE-LCH	lch(33.27, 73.52, 299.23°)
OKLab	oklab(43.92% 0.0066 -0.1854)
OKLCH	oklch(43.92% 0.185 272)
XYZ	xyz(11.6343, 7.6613, 45.1125)
Luminance	0.0766 (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

#343FB6 #B6AB34

analogous

#3480B6 #343FB6 #6A34B6

triadic

#343FB6 #B6343F #3FB634

tetradic

#343FB6 #B63480 #B6AB34 #34B66A

square

#343FB6 #B63480 #B6AB34 #34B66A

split-complementary

#343FB6 #B66A34 #80B634

monochromatic

#191E57 #262F86 #343FB6 #5862CF #888FDD

Accessibility & contrast

On white

8.29

#343FB6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#343FB6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343FB6

8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343FB6	#FFFFFF	#000000	##FFFFFF
##343FB6	1.00	8.29	2.53	8.29
#FFFFFF	8.29	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054BA

Deuteranopia (green-blind)

#0048B4

Tritanopia (blue-blind)

#005E75

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #343fb6;
/* rgb */ color: rgb(52, 63, 182);
/* oklch */ color: oklch(43.9% 0.185 272.0);

Tailwind

colors: {
  custom: {
    50: '#7e74cd',
    500: '#343fb6',
    950: '#000000',
  },
}

SCSS

$custom: #343fb6;
$custom-light: #7e74cd;
$custom-dark: #000000;

JSON

{
  "hex": "#343fb6",
  "rgb": {
    "r": 52,
    "g": 63,
    "b": 182
  },
  "hsl": {
    "h": 234.923,
    "s": 55.556,
    "l": 45.882
  },
  "oklch": {
    "l": 0.43923,
    "c": 0.18549,
    "h": 272
  },
  "luminance": 0.07662
}

Semantic roles & 50–950 ramp

primary

#343FB6

secondary

#C7C17F

accent

#D249DF

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #343FB6

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

Preview Lab → · Contrast checker → · Palette generator →