#343FA2#343FA2

#343FA2 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.1% C 0.159 H 272.7°. Best body text is #FFFFFF at 8.83:1 contrast (WCAG AA passes).

Color values

HEX	#343FA2
RGB	rgb(52, 63, 162)
HSL	hsl(234, 51%, 42%)
HSV	hsv(234, 68%, 64%)
CMYK	cmyk(67.9%, 61.1%, 0%, 36.5%)
CIE-LAB	lab(31.56, 28.76, -54.99)
CIE-LCH	lch(31.56, 62.06, 297.61°)
OKLab	oklab(42.14% 0.0075 -0.1585)
OKLCH	oklch(42.14% 0.159 272.7)
XYZ	xyz(9.7131, 6.8928, 34.9940)
Luminance	0.0689 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343FA2 #A29734

analogous

#3476A2 #343FA2 #6034A2

triadic

#343FA2 #A2343F #3FA234

tetradic

#343FA2 #A23476 #A29734 #34A260

square

#343FA2 #A23476 #A29734 #34A260

split-complementary

#343FA2 #A26034 #76A234

monochromatic

#161B45 #252D74 #343FA2 #4D59C6 #7C85D5

Accessibility & contrast

On white

8.83

#343FA2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#343FA2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343FA2

8.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343FA2	#FFFFFF	#000000	##FFFFFF
##343FA2	1.00	8.83	2.38	8.83
#FFFFFF	8.83	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA5

Deuteranopia (green-blind)

#0045A0

Tritanopia (blue-blind)

#00586A

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #343fa2;
/* rgb */ color: rgb(52, 63, 162);
/* oklch */ color: oklch(42.1% 0.159 272.7);

Tailwind

colors: {
  custom: {
    50: '#7974be',
    500: '#343fa2',
    950: '#000000',
  },
}

SCSS

$custom: #343fa2;
$custom-light: #7974be;
$custom-dark: #000000;

JSON

{
  "hex": "#343fa2",
  "rgb": {
    "r": 52,
    "g": 63,
    "b": 162
  },
  "hsl": {
    "h": 234,
    "s": 51.402,
    "l": 41.961
  },
  "oklch": {
    "l": 0.42141,
    "c": 0.15868,
    "h": 272.7
  },
  "luminance": 0.06894
}

Semantic roles & 50–950 ramp

primary

#343FA2

secondary

#BEB674

accent

#CD4DDB

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #343FA2

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

Preview Lab → · Contrast checker → · Palette generator →