#343D80#343D80

#343D80 is a dark, moderate blue. Relative luminance 0.056; OKLCH L 39.0% C 0.112 H 274.2°. Best body text is #FFFFFF at 9.88:1 contrast (WCAG AA passes).

Color values

HEX	#343D80
RGB	rgb(52, 61, 128)
HSL	hsl(233, 42%, 35%)
HSV	hsv(233, 59%, 50%)
CMYK	cmyk(59.4%, 52.3%, 0%, 49.8%)
CIE-LAB	lab(28.45, 17.80, -39.17)
CIE-LCH	lch(28.45, 43.02, 294.44°)
OKLab	oklab(39% 0.0083 -0.112)
OKLCH	oklch(39% 0.112 274.2)
XYZ	xyz(6.9799, 5.6256, 21.1359)
Luminance	0.0563 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343D80 #807734

analogous

#346380 #343D80 #513480

triadic

#343D80 #80343D #3D8034

tetradic

#343D80 #803463 #807734 #348051

square

#343D80 #803463 #807734 #348051

split-complementary

#343D80 #805134 #638034

monochromatic

#111429 #222854 #343D80 #4652AC #6B76C3

Accessibility & contrast

On white

9.88

#343D80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#343D80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343D80

9.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343D80	#FFFFFF	#000000	##FFFFFF
##343D80	1.00	9.88	2.13	9.88
#FFFFFF	9.88	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A4682

Deuteranopia (green-blind)

#0C407F

Tritanopia (blue-blind)

#034C58

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #343d80;
/* rgb */ color: rgb(52, 61, 128);
/* oklch */ color: oklch(39.0% 0.112 274.2);

Tailwind

colors: {
  custom: {
    50: '#7372a5',
    500: '#343d80',
    950: '#000000',
  },
}

SCSS

$custom: #343d80;
$custom-light: #7372a5;
$custom-dark: #000000;

JSON

{
  "hex": "#343d80",
  "rgb": {
    "r": 52,
    "g": 61,
    "b": 128
  },
  "hsl": {
    "h": 232.895,
    "s": 42.222,
    "l": 35.294
  },
  "oklch": {
    "l": 0.38999,
    "c": 0.11229,
    "h": 274.2
  },
  "luminance": 0.05626
}

Semantic roles & 50–950 ramp

primary

#343D80

secondary

#ABA365

accent

#C356D2

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#08070F

muted

#7B7A7F

Preview Lab

Preview with #343D80

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

Preview Lab → · Contrast checker → · Palette generator →