#343DDD#343DDD

#343DDD is a mid, highly saturated blue. Relative luminance 0.093; OKLCH L 47.4% C 0.236 H 270.8°. Best body text is #FFFFFF at 7.35:1 contrast (WCAG AA passes).

Color values

HEX	#343DDD
RGB	rgb(52, 61, 221)
HSL	hsl(237, 71%, 54%)
HSV	hsv(237, 76%, 87%)
CMYK	cmyk(76.5%, 72.4%, 0%, 13.3%)
CIE-LAB	lab(36.53, 50.41, -81.50)
CIE-LCH	lch(36.53, 95.83, 301.74°)
OKLab	oklab(47.39% 0.0032 -0.236)
OKLCH	oklch(47.39% 0.236 270.8)
XYZ	xyz(16.1316, 9.2862, 69.3348)
Luminance	0.0929 (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

#343DDD #DDD434

analogous

#3491DD #343DDD #7F34DD

triadic

#343DDD #DD343D #3DDD34

tetradic

#343DDD #DD3491 #DDD434 #34DD7F

square

#343DDD #DD3491 #DDD434 #34DD7F

split-complementary

#343DDD #DD7F34 #91DD34

monochromatic

#161B81 #1E26B5 #343DDD #686FE6 #9DA1EF

Accessibility & contrast

On white

7.35

#343DDD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#343DDD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343DDD

7.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343DDD	#FFFFFF	#000000	##FFFFFF
##343DDD	1.00	7.35	2.86	7.35
#FFFFFF	7.35	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EE2

Deuteranopia (green-blind)

#004EDA

Tritanopia (blue-blind)

#006B8A

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #343ddd;
/* rgb */ color: rgb(52, 61, 221);
/* oklch */ color: oklch(47.4% 0.236 270.8);

Tailwind

colors: {
  custom: {
    50: '#8774e9',
    500: '#343ddd',
    950: '#000000',
  },
}

SCSS

$custom: #343ddd;
$custom-light: #8774e9;
$custom-dark: #000000;

JSON

{
  "hex": "#343ddd",
  "rgb": {
    "r": 52,
    "g": 61,
    "b": 221
  },
  "hsl": {
    "h": 236.805,
    "s": 71.308,
    "l": 53.529
  },
  "oklch": {
    "l": 0.47394,
    "c": 0.23601,
    "h": 270.8
  },
  "luminance": 0.09288
}

Semantic roles & 50–950 ramp

primary

#343DDD

secondary

#DBD792

accent

#E43AEE

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0D0816

muted

#7E7B84

Preview Lab

Preview with #343DDD

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

Preview Lab → · Contrast checker → · Palette generator →