#343ABB#343ABB

#343ABB is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.6% C 0.198 H 272.7°. Best body text is #FFFFFF at 8.51:1 contrast (WCAG AA passes).

Color values

HEX	#343ABB
RGB	rgb(52, 58, 187)
HSL	hsl(237, 56%, 47%)
HSV	hsv(237, 72%, 73%)
CMYK	cmyk(72.2%, 69%, 0%, 26.7%)
CIE-LAB	lab(32.57, 40.73, -68.25)
CIE-LCH	lch(32.57, 79.48, 300.83°)
OKLab	oklab(43.56% 0.0092 -0.1974)
OKLCH	oklch(43.56% 0.198 272.7)
XYZ	xyz(11.8959, 7.3428, 47.7945)
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

#343ABB #BBB534

analogous

#347EBB #343ABB #7134BB

triadic

#343ABB #BB343A #3ABB34

tetradic

#343ABB #BB347E #BBB534 #34BB71

square

#343ABB #BB347E #BBB534 #34BB71

split-complementary

#343ABB #BB7134 #7EBB34

monochromatic

#191C5B #272B8B #343ABB #5B60D1 #8B8EDF

Accessibility & contrast

On white

8.51

#343ABB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#343ABB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343ABB

8.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343ABB	#FFFFFF	#000000	##FFFFFF
##343ABB	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)

#0053BF

Deuteranopia (green-blind)

#0046B9

Tritanopia (blue-blind)

#005D76

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #343abb;
/* rgb */ color: rgb(52, 58, 187);
/* oklch */ color: oklch(43.6% 0.198 272.7);

Tailwind

colors: {
  custom: {
    50: '#7f71d1',
    500: '#343abb',
    950: '#000000',
  },
}

SCSS

$custom: #343abb;
$custom-light: #7f71d1;
$custom-dark: #000000;

JSON

{
  "hex": "#343abb",
  "rgb": {
    "r": 52,
    "g": 58,
    "b": 187
  },
  "hsl": {
    "h": 237.333,
    "s": 56.485,
    "l": 46.863
  },
  "oklch": {
    "l": 0.43559,
    "c": 0.19758,
    "h": 272.7
  },
  "luminance": 0.07344
}

Semantic roles & 50–950 ramp

primary

#343ABB

secondary

#C9C682

accent

#D948E0

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #343ABB

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

Preview Lab → · Contrast checker → · Palette generator →