#343A9F#343A9F

#343A9F is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.0% C 0.161 H 274.2°. Best body text is #FFFFFF at 9.33:1 contrast (WCAG AA passes).

Color values

HEX	#343A9F
RGB	rgb(52, 58, 159)
HSL	hsl(237, 51%, 41%)
HSV	hsv(237, 67%, 62%)
CMYK	cmyk(67.3%, 63.5%, 0%, 37.6%)
CIE-LAB	lab(30.06, 30.93, -55.64)
CIE-LCH	lch(30.06, 63.66, 299.07°)
OKLab	oklab(40.95% 0.0118 -0.1604)
OKLCH	oklch(40.95% 0.161 274.2)
XYZ	xyz(9.1852, 6.2586, 33.5181)
Luminance	0.0626 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343A9F #9F9934

analogous

#34709F #343A9F #64349F

triadic

#343A9F #9F343A #3A9F34

tetradic

#343A9F #9F3470 #9F9934 #349F64

square

#343A9F #9F3470 #9F9934 #349F64

split-complementary

#343A9F #9F6434 #709F34

monochromatic

#161843 #252971 #343A9F #4C53C4 #7A7FD3

Accessibility & contrast

On white

9.33

#343A9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#343A9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343A9F

9.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343A9F	#FFFFFF	#000000	##FFFFFF
##343A9F	1.00	9.33	2.25	9.33
#FFFFFF	9.33	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA2

Deuteranopia (green-blind)

#00429D

Tritanopia (blue-blind)

#005467

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #343a9f;
/* rgb */ color: rgb(52, 58, 159);
/* oklch */ color: oklch(41.0% 0.161 274.2);

Tailwind

colors: {
  custom: {
    50: '#7970bc',
    500: '#343a9f',
    950: '#000000',
  },
}

SCSS

$custom: #343a9f;
$custom-light: #7970bc;
$custom-dark: #000000;

JSON

{
  "hex": "#343a9f",
  "rgb": {
    "r": 52,
    "g": 58,
    "b": 159
  },
  "hsl": {
    "h": 236.636,
    "s": 50.711,
    "l": 41.373
  },
  "oklch": {
    "l": 0.40953,
    "c": 0.16086,
    "h": 274.2
  },
  "luminance": 0.06259
}

Semantic roles & 50–950 ramp

primary

#343A9F

secondary

#BCB873

accent

#D24EDA

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #343A9F

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

Preview Lab → · Contrast checker → · Palette generator →