#343BBF#343BBF

#343BBF is a dark, highly saturated blue. Relative luminance 0.076; OKLCH L 44.1% C 0.202 H 272.3°. Best body text is #FFFFFF at 8.32:1 contrast (WCAG AA passes).

Color values

HEX	#343BBF
RGB	rgb(52, 59, 191)
HSL	hsl(237, 57%, 48%)
HSV	hsv(237, 73%, 75%)
CMYK	cmyk(72.8%, 69.1%, 0%, 25.1%)
CIE-LAB	lab(33.17, 41.50, -69.62)
CIE-LCH	lch(33.17, 81.05, 300.80°)
OKLab	oklab(44.11% 0.0082 -0.2013)
OKLCH	oklch(44.11% 0.202 272.3)
XYZ	xyz(12.3809, 7.6183, 50.0981)
Luminance	0.0762 (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

#343BBF #BFB834

analogous

#3481BF #343BBF #7234BF

triadic

#343BBF #BF343B #3BBF34

tetradic

#343BBF #BF3481 #BFB834 #34BF72

square

#343BBF #BF3481 #BFB834 #34BF72

split-complementary

#343BBF #BF7234 #81BF34

monochromatic

#1A1D5F #272C8F #343BBF #5D63D3 #8D92E0

Accessibility & contrast

On white

8.32

#343BBF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#343BBF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343BBF

8.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343BBF	#FFFFFF	#000000	##FFFFFF
##343BBF	1.00	8.32	2.52	8.32
#FFFFFF	8.32	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C3

Deuteranopia (green-blind)

#0047BD

Tritanopia (blue-blind)

#005F78

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #343bbf;
/* rgb */ color: rgb(52, 59, 191);
/* oklch */ color: oklch(44.1% 0.202 272.3);

Tailwind

colors: {
  custom: {
    50: '#8072d3',
    500: '#343bbf',
    950: '#000000',
  },
}

SCSS

$custom: #343bbf;
$custom-light: #8072d3;
$custom-dark: #000000;

JSON

{
  "hex": "#343bbf",
  "rgb": {
    "r": 52,
    "g": 59,
    "b": 191
  },
  "hsl": {
    "h": 236.978,
    "s": 57.202,
    "l": 47.647
  },
  "oklch": {
    "l": 0.44107,
    "c": 0.20152,
    "h": 272.3
  },
  "luminance": 0.0762
}

Semantic roles & 50–950 ramp

primary

#343BBF

secondary

#CAC784

accent

#D947E0

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #343BBF

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

Preview Lab → · Contrast checker → · Palette generator →