#343B79#343B79

#343B79 is a dark, moderate blue. Relative luminance 0.052; OKLCH L 38.1% C 0.104 H 275.4°. Best body text is #FFFFFF at 10.26:1 contrast (WCAG AA passes).

Color values

HEX	#343B79
RGB	rgb(52, 59, 121)
HSL	hsl(234, 40%, 34%)
HSV	hsv(234, 57%, 47%)
CMYK	cmyk(57%, 51.2%, 0%, 52.5%)
CIE-LAB	lab(27.40, 16.66, -36.45)
CIE-LCH	lch(27.40, 40.08, 294.56°)
OKLab	oklab(38.06% 0.0099 -0.104)
OKLCH	oklch(38.06% 0.104 275.4)
XYZ	xyz(6.4302, 5.2380, 18.7577)
Luminance	0.0524 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343B79 #797234

analogous

#345E79 #343B79 #503479

triadic

#343B79 #79343B #3B7934

tetradic

#343B79 #79345E #797234 #347950

square

#343B79 #79345E #797234 #347950

split-complementary

#343B79 #795034 #5E7934

monochromatic

#0F1123 #22264E #343B79 #4650A4 #6972BE

Accessibility & contrast

On white

10.26

#343B79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#343B79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343B79

10.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343B79	#FFFFFF	#000000	##FFFFFF
##343B79	1.00	10.26	2.05	10.26
#FFFFFF	10.26	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D447B

Deuteranopia (green-blind)

#133E78

Tritanopia (blue-blind)

#114954

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #343b79;
/* rgb */ color: rgb(52, 59, 121);
/* oklch */ color: oklch(38.1% 0.104 275.4);

Tailwind

colors: {
  custom: {
    50: '#7170a0',
    500: '#343b79',
    950: '#000000',
  },
}

SCSS

$custom: #343b79;
$custom-light: #7170a0;
$custom-dark: #000000;

JSON

{
  "hex": "#343b79",
  "rgb": {
    "r": 52,
    "g": 59,
    "b": 121
  },
  "hsl": {
    "h": 233.913,
    "s": 39.884,
    "l": 33.922
  },
  "oklch": {
    "l": 0.38056,
    "c": 0.10449,
    "h": 275.4
  },
  "luminance": 0.05238
}

Semantic roles & 50–950 ramp

primary

#343B79

secondary

#A7A062

accent

#C458D0

background

#F7F6F9

surface

#EDECF2

border

#C8C7CC

text

#08070F

muted

#7B7A7E

Preview Lab

Preview with #343B79

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

Preview Lab → · Contrast checker → · Palette generator →