#343BC3#343BC3

#343BC3 is a dark, highly saturated blue. Relative luminance 0.078; OKLCH L 44.5% C 0.207 H 272.1°. Best body text is #FFFFFF at 8.20:1 contrast (WCAG AA passes).

Color values

HEX	#343BC3
RGB	rgb(52, 59, 195)
HSL	hsl(237, 58%, 48%)
HSV	hsv(237, 73%, 76%)
CMYK	cmyk(73.3%, 69.7%, 0%, 23.5%)
CIE-LAB	lab(33.56, 42.86, -71.34)
CIE-LCH	lch(33.56, 83.22, 301.00°)
OKLab	oklab(44.5% 0.0077 -0.2064)
OKLCH	oklch(44.5% 0.207 272.1)
XYZ	xyz(12.8271, 7.7968, 52.4481)
Luminance	0.0780 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.68

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343BC3 #C3BC34

analogous

#3482C3 #343BC3 #7434C3

triadic

#343BC3 #C3343B #3BC334

tetradic

#343BC3 #C33482 #C3BC34 #34C374

square

#343BC3 #C33482 #C3BC34 #34C374

split-complementary

#343BC3 #C37434 #82C334

monochromatic

#1A1E62 #272C93 #343BC3 #6065D5 #9094E1

Accessibility & contrast

On white

8.20

#343BC3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#343BC3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343BC3

8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343BC3	#FFFFFF	#000000	##FFFFFF
##343BC3	1.00	8.20	2.56	8.20
#FFFFFF	8.20	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C7

Deuteranopia (green-blind)

#0048C1

Tritanopia (blue-blind)

#00617A

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #343bc3;
/* rgb */ color: rgb(52, 59, 195);
/* oklch */ color: oklch(44.5% 0.207 272.1);

Tailwind

colors: {
  custom: {
    50: '#8172d6',
    500: '#343bc3',
    950: '#000000',
  },
}

SCSS

$custom: #343bc3;
$custom-light: #8172d6;
$custom-dark: #000000;

JSON

{
  "hex": "#343bc3",
  "rgb": {
    "r": 52,
    "g": 59,
    "b": 195
  },
  "hsl": {
    "h": 237.063,
    "s": 57.895,
    "l": 48.431
  },
  "oklch": {
    "l": 0.44497,
    "c": 0.20652,
    "h": 272.1
  },
  "luminance": 0.07798
}

Semantic roles & 50–950 ramp

primary

#343BC3

secondary

#CCC987

accent

#DA47E1

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #343BC3

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

Preview Lab → · Contrast checker → · Palette generator →