#343AB6#343AB6

#343AB6 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 43.1% C 0.191 H 272.9°. Best body text is #FFFFFF at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#343AB6
RGB	rgb(52, 58, 182)
HSL	hsl(237, 56%, 46%)
HSV	hsv(237, 71%, 71%)
CMYK	cmyk(71.4%, 68.1%, 0%, 28.6%)
CIE-LAB	lab(32.11, 39.01, -66.06)
CIE-LCH	lch(32.11, 76.72, 300.56°)
OKLab	oklab(43.08% 0.0098 -0.191)
OKLCH	oklch(43.08% 0.191 272.9)
XYZ	xyz(11.3699, 7.1325, 45.0244)
Luminance	0.0713 (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

#343AB6 #B6B034

analogous

#347BB6 #343AB6 #6F34B6

triadic

#343AB6 #B6343A #3AB634

tetradic

#343AB6 #B6347B #B6B034 #34B66F

square

#343AB6 #B6347B #B6B034 #34B66F

split-complementary

#343AB6 #B66F34 #7BB634

monochromatic

#191C57 #262B86 #343AB6 #585DCF #888BDD

Accessibility & contrast

On white

8.65

#343AB6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#343AB6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343AB6

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343AB6	#FFFFFF	#000000	##FFFFFF
##343AB6	1.00	8.65	2.43	8.65
#FFFFFF	8.65	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052BA

Deuteranopia (green-blind)

#0045B4

Tritanopia (blue-blind)

#005B73

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #343ab6;
/* rgb */ color: rgb(52, 58, 182);
/* oklch */ color: oklch(43.1% 0.191 272.9);

Tailwind

colors: {
  custom: {
    50: '#7e71cd',
    500: '#343ab6',
    950: '#000000',
  },
}

SCSS

$custom: #343ab6;
$custom-light: #7e71cd;
$custom-dark: #000000;

JSON

{
  "hex": "#343ab6",
  "rgb": {
    "r": 52,
    "g": 58,
    "b": 182
  },
  "hsl": {
    "h": 237.231,
    "s": 55.556,
    "l": 45.882
  },
  "oklch": {
    "l": 0.43078,
    "c": 0.19121,
    "h": 272.9
  },
  "luminance": 0.07134
}

Semantic roles & 50–950 ramp

primary

#343AB6

secondary

#C7C37F

accent

#D849DF

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #343AB6

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

Preview Lab → · Contrast checker → · Palette generator →