#343CCA#343CCA

#343CCA is a mid, highly saturated blue. Relative luminance 0.082; OKLCH L 45.3% C 0.214 H 271.7°. Best body text is #FFFFFF at 7.94:1 contrast (WCAG AA passes).

Color values

HEX	#343CCA
RGB	rgb(52, 60, 202)
HSL	hsl(237, 59%, 50%)
HSV	hsv(237, 74%, 79%)
CMYK	cmyk(74.3%, 70.3%, 0%, 20.8%)
CIE-LAB	lab(34.45, 44.65, -73.96)
CIE-LCH	lch(34.45, 86.39, 301.12°)
OKLab	oklab(45.34% 0.0063 -0.214)
OKLCH	oklch(45.34% 0.214 271.7)
XYZ	xyz(13.6891, 8.2246, 56.7317)
Luminance	0.0823 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.57

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343CCA #CAC234

analogous

#3487CA #343CCA #7734CA

triadic

#343CCA #CA343C #3CCA34

tetradic

#343CCA #CA3487 #CAC234 #34CA77

square

#343CCA #CA3487 #CAC234 #34CA77

split-complementary

#343CCA #CA7734 #87CA34

monochromatic

#1B1F69 #272E99 #343CCA #646AD7 #9599E4

Accessibility & contrast

On white

7.94

#343CCA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#343CCA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343CCA

7.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343CCA	#FFFFFF	#000000	##FFFFFF
##343CCA	1.00	7.94	2.65	7.94
#FFFFFF	7.94	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058CE

Deuteranopia (green-blind)

#004AC7

Tritanopia (blue-blind)

#00647F

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #343cca;
/* rgb */ color: rgb(52, 60, 202);
/* oklch */ color: oklch(45.3% 0.214 271.7);

Tailwind

colors: {
  custom: {
    50: '#8273db',
    500: '#343cca',
    950: '#000000',
  },
}

SCSS

$custom: #343cca;
$custom-light: #8273db;
$custom-dark: #000000;

JSON

{
  "hex": "#343cca",
  "rgb": {
    "r": 52,
    "g": 60,
    "b": 202
  },
  "hsl": {
    "h": 236.8,
    "s": 59.055,
    "l": 49.804
  },
  "oklch": {
    "l": 0.45341,
    "c": 0.21412,
    "h": 271.7
  },
  "luminance": 0.08226
}

Semantic roles & 50–950 ramp

primary

#343CCA

secondary

#CFCB8B

accent

#DA46E2

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #343CCA

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

Preview Lab → · Contrast checker → · Palette generator →