#343A9C#343A9C

#343A9C is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.7% C 0.157 H 274.4°. Best body text is #FFFFFF at 9.41:1 contrast (WCAG AA passes).

Color values

HEX	#343A9C
RGB	rgb(52, 58, 156)
HSL	hsl(237, 50%, 41%)
HSV	hsv(237, 67%, 61%)
CMYK	cmyk(66.7%, 62.8%, 0%, 38.8%)
CIE-LAB	lab(29.80, 29.87, -54.23)
CIE-LCH	lch(29.80, 61.91, 298.84°)
OKLab	oklab(40.69% 0.0119 -0.1563)
OKLCH	oklch(40.69% 0.157 274.4)
XYZ	xyz(8.9280, 6.1557, 32.1637)
Luminance	0.0616 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343A9C #9C9634

analogous

#346E9C #343A9C #62349C

triadic

#343A9C #9C343A #3A9C34

tetradic

#343A9C #9C346E #9C9634 #349C62

square

#343A9C #9C346E #9C9634 #349C62

split-complementary

#343A9C #9C6234 #6E9C34

monochromatic

#151840 #25296E #343A9C #4A51C3 #787DD2

Accessibility & contrast

On white

9.41

#343A9C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#343A9C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343A9C

9.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343A9C	#FFFFFF	#000000	##FFFFFF
##343A9C	1.00	9.41	2.23	9.41
#FFFFFF	9.41	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9F

Deuteranopia (green-blind)

#00429A

Tritanopia (blue-blind)

#005365

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #343a9c;
/* rgb */ color: rgb(52, 58, 156);
/* oklch */ color: oklch(40.7% 0.157 274.4);

Tailwind

colors: {
  custom: {
    50: '#7870ba',
    500: '#343a9c',
    950: '#000000',
  },
}

SCSS

$custom: #343a9c;
$custom-light: #7870ba;
$custom-dark: #000000;

JSON

{
  "hex": "#343a9c",
  "rgb": {
    "r": 52,
    "g": 58,
    "b": 156
  },
  "hsl": {
    "h": 236.538,
    "s": 50,
    "l": 40.784
  },
  "oklch": {
    "l": 0.40687,
    "c": 0.15675,
    "h": 274.4
  },
  "luminance": 0.06156
}

Semantic roles & 50–950 ramp

primary

#343A9C

secondary

#BBB671

accent

#D14EDA

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #343A9C

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

Preview Lab → · Contrast checker → · Palette generator →