#343CB6#343CB6

#343CB6 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.4% C 0.189 H 272.6°. Best body text is #FFFFFF at 8.51:1 contrast (WCAG AA passes).

Color values

HEX	#343CB6
RGB	rgb(52, 60, 182)
HSL	hsl(236, 56%, 46%)
HSV	hsv(236, 71%, 71%)
CMYK	cmyk(71.4%, 67%, 0%, 28.6%)
CIE-LAB	lab(32.56, 37.77, -65.31)
CIE-LCH	lch(32.56, 75.45, 300.05°)
OKLab	oklab(43.41% 0.0086 -0.1888)
OKLCH	oklch(43.41% 0.189 272.6)
XYZ	xyz(11.4727, 7.3380, 45.0587)
Luminance	0.0734 (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

#343CB6 #B6AE34

analogous

#347DB6 #343CB6 #6D34B6

triadic

#343CB6 #B6343C #3CB634

tetradic

#343CB6 #B6347D #B6AE34 #34B66D

square

#343CB6 #B6347D #B6AE34 #34B66D

split-complementary

#343CB6 #B66D34 #7DB634

monochromatic

#191D57 #262C86 #343CB6 #585FCF #888DDD

Accessibility & contrast

On white

8.51

#343CB6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#343CB6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343CB6

8.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343CB6	#FFFFFF	#000000	##FFFFFF
##343CB6	1.00	8.51	2.47	8.51
#FFFFFF	8.51	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053BA

Deuteranopia (green-blind)

#0047B4

Tritanopia (blue-blind)

#005D74

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #343cb6;
/* rgb */ color: rgb(52, 60, 182);
/* oklch */ color: oklch(43.4% 0.189 272.6);

Tailwind

colors: {
  custom: {
    50: '#7e72cd',
    500: '#343cb6',
    950: '#000000',
  },
}

SCSS

$custom: #343cb6;
$custom-light: #7e72cd;
$custom-dark: #000000;

JSON

{
  "hex": "#343cb6",
  "rgb": {
    "r": 52,
    "g": 60,
    "b": 182
  },
  "hsl": {
    "h": 236.308,
    "s": 55.556,
    "l": 45.882
  },
  "oklch": {
    "l": 0.43411,
    "c": 0.18895,
    "h": 272.6
  },
  "luminance": 0.07339
}

Semantic roles & 50–950 ramp

primary

#343CB6

secondary

#C7C27F

accent

#D649DF

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #343CB6

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

Preview Lab → · Contrast checker → · Palette generator →