#343C8E#343C8E

#343C8E is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.9% C 0.134 H 274.4°. Best body text is #FFFFFF at 9.62:1 contrast (WCAG AA passes).

Color values

HEX	#343C8E
RGB	rgb(52, 60, 142)
HSL	hsl(235, 46%, 38%)
HSV	hsv(235, 63%, 56%)
CMYK	cmyk(63.4%, 57.7%, 0%, 44.3%)
CIE-LAB	lab(29.19, 23.52, -46.65)
CIE-LCH	lch(29.19, 52.24, 296.76°)
OKLab	oklab(39.89% 0.0102 -0.134)
OKLCH	oklch(39.89% 0.134 274.4)
XYZ	xyz(7.9129, 5.9141, 26.3105)
Luminance	0.0592 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343C8E #8E8634

analogous

#34698E #343C8E #59348E

triadic

#343C8E #8E343C #3C8E34

tetradic

#343C8E #8E3469 #8E8634 #348E59

square

#343C8E #8E3469 #8E8634 #348E59

split-complementary

#343C8E #8E5934 #698E34

monochromatic

#131634 #242961 #343C8E #444FBB #7179CB

Accessibility & contrast

On white

9.62

#343C8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#343C8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343C8E

9.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343C8E	#FFFFFF	#000000	##FFFFFF
##343C8E	1.00	9.62	2.18	9.62
#FFFFFF	9.62	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004991

Deuteranopia (green-blind)

#00418C

Tritanopia (blue-blind)

#00505F

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #343c8e;
/* rgb */ color: rgb(52, 60, 142);
/* oklch */ color: oklch(39.9% 0.134 274.4);

Tailwind

colors: {
  custom: {
    50: '#7571b0',
    500: '#343c8e',
    950: '#000000',
  },
}

SCSS

$custom: #343c8e;
$custom-light: #7571b0;
$custom-dark: #000000;

JSON

{
  "hex": "#343c8e",
  "rgb": {
    "r": 52,
    "g": 60,
    "b": 142
  },
  "hsl": {
    "h": 234.667,
    "s": 46.392,
    "l": 38.039
  },
  "oklch": {
    "l": 0.39885,
    "c": 0.13439,
    "h": 274.4
  },
  "luminance": 0.05915
}

Semantic roles & 50–950 ramp

primary

#343C8E

secondary

#B3AD6A

accent

#CA52D6

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #343C8E

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

Preview Lab → · Contrast checker → · Palette generator →