#343FC8#343FC8

#343FC8 is a mid, highly saturated blue. Relative luminance 0.085; OKLCH L 45.6% C 0.208 H 271.4°. Best body text is #FFFFFF at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#343FC8
RGB	rgb(52, 63, 200)
HSL	hsl(236, 59%, 49%)
HSV	hsv(236, 74%, 78%)
CMYK	cmyk(74%, 68.5%, 0%, 21.6%)
CIE-LAB	lab(34.91, 42.18, -72.03)
CIE-LCH	lch(34.91, 83.47, 300.35°)
OKLab	oklab(45.62% 0.0049 -0.2084)
OKLCH	oklch(45.62% 0.208 271.4)
XYZ	xyz(13.6155, 8.4538, 55.5466)
Luminance	0.0846 (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

#343FC8 #C8BD34

analogous

#3489C8 #343FC8 #7334C8

triadic

#343FC8 #C8343F #3FC834

tetradic

#343FC8 #C83489 #C8BD34 #34C873

square

#343FC8 #C83489 #C8BD34 #34C873

split-complementary

#343FC8 #C87334 #89C834

monochromatic

#1B2067 #273097 #343FC8 #636BD6 #9399E3

Accessibility & contrast

On white

7.80

#343FC8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#343FC8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343FC8

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343FC8	#FFFFFF	#000000	##FFFFFF
##343FC8	1.00	7.80	2.69	7.80
#FFFFFF	7.80	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059CC

Deuteranopia (green-blind)

#004BC5

Tritanopia (blue-blind)

#00657E

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #343fc8;
/* rgb */ color: rgb(52, 63, 200);
/* oklch */ color: oklch(45.6% 0.208 271.4);

Tailwind

colors: {
  custom: {
    50: '#8274da',
    500: '#343fc8',
    950: '#000000',
  },
}

SCSS

$custom: #343fc8;
$custom-light: #8274da;
$custom-dark: #000000;

JSON

{
  "hex": "#343fc8",
  "rgb": {
    "r": 52,
    "g": 63,
    "b": 200
  },
  "hsl": {
    "h": 235.541,
    "s": 58.73,
    "l": 49.412
  },
  "oklch": {
    "l": 0.45618,
    "c": 0.20846,
    "h": 271.4
  },
  "luminance": 0.08455
}

Semantic roles & 50–950 ramp

primary

#343FC8

secondary

#CEC98A

accent

#D646E2

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #343FC8

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

Preview Lab → · Contrast checker → · Palette generator →