#343EBB#343EBB

#343EBB is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.2% C 0.193 H 272.0°. Best body text is #FFFFFF at 8.23:1 contrast (WCAG AA passes).

Color values

HEX	#343EBB
RGB	rgb(52, 62, 187)
HSL	hsl(236, 56%, 47%)
HSV	hsv(236, 72%, 73%)
CMYK	cmyk(72.2%, 66.8%, 0%, 26.7%)
CIE-LAB	lab(33.48, 38.28, -66.76)
CIE-LCH	lch(33.48, 76.95, 299.83°)
OKLab	oklab(44.22% 0.0068 -0.193)
OKLCH	oklch(44.22% 0.193 272)
XYZ	xyz(12.1054, 7.7619, 47.8643)
Luminance	0.0776 (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

#343EBB #BBB134

analogous

#3481BB #343EBB #6E34BB

triadic

#343EBB #BB343E #3EBB34

tetradic

#343EBB #BB3481 #BBB134 #34BB6E

square

#343EBB #BB3481 #BBB134 #34BB6E

split-complementary

#343EBB #BB6E34 #81BB34

monochromatic

#191E5B #272E8B #343EBB #5B64D1 #8B91DF

Accessibility & contrast

On white

8.23

#343EBB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#343EBB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343EBB

8.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343EBB	#FFFFFF	#000000	##FFFFFF
##343EBB	1.00	8.23	2.55	8.23
#FFFFFF	8.23	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055BF

Deuteranopia (green-blind)

#0048B9

Tritanopia (blue-blind)

#005F77

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #343ebb;
/* rgb */ color: rgb(52, 62, 187);
/* oklch */ color: oklch(44.2% 0.193 272.0);

Tailwind

colors: {
  custom: {
    50: '#7f73d1',
    500: '#343ebb',
    950: '#000000',
  },
}

SCSS

$custom: #343ebb;
$custom-light: #7f73d1;
$custom-dark: #000000;

JSON

{
  "hex": "#343ebb",
  "rgb": {
    "r": 52,
    "g": 62,
    "b": 187
  },
  "hsl": {
    "h": 235.556,
    "s": 56.485,
    "l": 46.863
  },
  "oklch": {
    "l": 0.44217,
    "c": 0.19311,
    "h": 272
  },
  "luminance": 0.07763
}

Semantic roles & 50–950 ramp

primary

#343EBB

secondary

#C9C482

accent

#D548E0

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #343EBB

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

Preview Lab → · Contrast checker → · Palette generator →