#343C80#343C80

#343C80 is a dark, moderate blue. Relative luminance 0.055; OKLCH L 38.8% C 0.114 H 274.8°. Best body text is #FFFFFF at 9.98:1 contrast (WCAG AA passes).

Color values

HEX	#343C80
RGB	rgb(52, 60, 128)
HSL	hsl(234, 42%, 35%)
HSV	hsv(234, 59%, 50%)
CMYK	cmyk(59.4%, 53.1%, 0%, 49.8%)
CIE-LAB	lab(28.17, 18.48, -39.62)
CIE-LCH	lch(28.17, 43.72, 295.00°)
OKLab	oklab(38.79% 0.0094 -0.1133)
OKLCH	oklch(38.79% 0.114 274.8)
XYZ	xyz(6.9271, 5.5198, 21.1183)
Luminance	0.0552 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343C80 #807834

analogous

#346280 #343C80 #523480

triadic

#343C80 #80343C #3C8034

tetradic

#343C80 #803462 #807834 #348052

square

#343C80 #803462 #807834 #348052

split-complementary

#343C80 #805234 #628034

monochromatic

#111329 #222854 #343C80 #4650AC #6B75C3

Accessibility & contrast

On white

9.98

#343C80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#343C80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343C80

9.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343C80	#FFFFFF	#000000	##FFFFFF
##343C80	1.00	9.98	2.10	9.98
#FFFFFF	9.98	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	9.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#174682

Deuteranopia (green-blind)

#083F7F

Tritanopia (blue-blind)

#034B58

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #343c80;
/* rgb */ color: rgb(52, 60, 128);
/* oklch */ color: oklch(38.8% 0.114 274.8);

Tailwind

colors: {
  custom: {
    50: '#7371a5',
    500: '#343c80',
    950: '#000000',
  },
}

SCSS

$custom: #343c80;
$custom-light: #7371a5;
$custom-dark: #000000;

JSON

{
  "hex": "#343c80",
  "rgb": {
    "r": 52,
    "g": 60,
    "b": 128
  },
  "hsl": {
    "h": 233.684,
    "s": 42.222,
    "l": 35.294
  },
  "oklch": {
    "l": 0.38788,
    "c": 0.11371,
    "h": 274.8
  },
  "luminance": 0.0552
}

Semantic roles & 50–950 ramp

primary

#343C80

secondary

#ABA465

accent

#C556D2

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#08070F

muted

#7B7A7F

Preview Lab

Preview with #343C80

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

Preview Lab → · Contrast checker → · Palette generator →