#343E77#343E77

#343E77 is a dark, moderate blue. Relative luminance 0.055; OKLCH L 38.6% C 0.097 H 273.5°. Best body text is #FFFFFF at 9.99:1 contrast (WCAG AA passes).

Color values

HEX	#343E77
RGB	rgb(52, 62, 119)
HSL	hsl(231, 39%, 34%)
HSV	hsv(231, 56%, 47%)
CMYK	cmyk(56.3%, 47.9%, 0%, 53.3%)
CIE-LAB	lab(28.13, 13.90, -34.02)
CIE-LCH	lch(28.13, 36.75, 292.23°)
OKLab	oklab(38.57% 0.006 -0.0968)
OKLCH	oklch(38.57% 0.097 273.5)
XYZ	xyz(6.4675, 5.5068, 18.1713)
Luminance	0.0551 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343E77 #776D34

analogous

#345F77 #343E77 #4B3477

triadic

#343E77 #77343E #3E7734

tetradic

#343E77 #77345F #776D34 #34774B

square

#343E77 #77345F #776D34 #34774B

split-complementary

#343E77 #774B34 #5F7734

monochromatic

#0F1222 #21284C #343E77 #4754A2 #6875BD

Accessibility & contrast

On white

9.99

#343E77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#343E77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343E77

9.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343E77	#FFFFFF	#000000	##FFFFFF
##343E77	1.00	9.99	2.10	9.99
#FFFFFF	9.99	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	9.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#254579

Deuteranopia (green-blind)

#1D4076

Tritanopia (blue-blind)

#134A54

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #343e77;
/* rgb */ color: rgb(52, 62, 119);
/* oklch */ color: oklch(38.6% 0.097 273.5);

Tailwind

colors: {
  custom: {
    50: '#71739e',
    500: '#343e77',
    950: '#000000',
  },
}

SCSS

$custom: #343e77;
$custom-light: #71739e;
$custom-dark: #000000;

JSON

{
  "hex": "#343e77",
  "rgb": {
    "r": 52,
    "g": 62,
    "b": 119
  },
  "hsl": {
    "h": 231.045,
    "s": 39.181,
    "l": 33.529
  },
  "oklch": {
    "l": 0.38567,
    "c": 0.09703,
    "h": 273.5
  },
  "luminance": 0.05507
}

Semantic roles & 50–950 ramp

primary

#343E77

secondary

#A59B61

accent

#BD59CF

background

#F7F6F9

surface

#EDECF2

border

#C8C7CC

text

#08080E

muted

#7B7B7E

Preview Lab

Preview with #343E77

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

Preview Lab → · Contrast checker → · Palette generator →