#343C40#343C40

#343C40 is a dark, near-neutral cyan. Relative luminance 0.043; OKLCH L 35.0% C 0.013 H 229.3°. Best body text is #FFFFFF at 11.25:1 contrast (WCAG AA passes).

Color values

HEX	#343C40
RGB	rgb(52, 60, 64)
HSL	hsl(200, 10%, 23%)
HSV	hsv(200, 19%, 25%)
CMYK	cmyk(18.8%, 6.2%, 0%, 74.9%)
CIE-LAB	lab(24.74, -2.31, -3.59)
CIE-LCH	lch(24.74, 4.27, 237.26°)
OKLab	oklab(35.03% -0.0083 -0.0097)
OKLCH	oklch(35.03% 0.013 229.3)
XYZ	xyz(3.9572, 4.3319, 5.4771)
Luminance	0.0433 (WCAG relative)
Temperature	neutral
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343C40 #403834

analogous

#34403E #343C40 #343640

triadic

#343C40 #40343C #3C4034

tetradic

#343C40 #3E3440 #403834 #364034

square

#343C40 #3E3440 #403834 #364034

split-complementary

#343C40 #403436 #403E34

monochromatic

#0E1011 #191C1E #343C40 #4F5C62 #6B7B84

Accessibility & contrast

On white

11.25

#343C40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#343C40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343C40

11.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343C40	#FFFFFF	#000000	##FFFFFF
##343C40	1.00	11.25	1.87	11.25
#FFFFFF	11.25	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A3C40

Deuteranopia (green-blind)

#383A40

Tritanopia (blue-blind)

#313D3D

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #343c40;
/* rgb */ color: rgb(52, 60, 64);
/* oklch */ color: oklch(35.0% 0.013 229.3);

Tailwind

colors: {
  custom: {
    50: '#6b7174',
    500: '#343c40',
    950: '#000000',
  },
}

SCSS

$custom: #343c40;
$custom-light: #6b7174;
$custom-dark: #000000;

JSON

{
  "hex": "#343c40",
  "rgb": {
    "r": 52,
    "g": 60,
    "b": 64
  },
  "hsl": {
    "h": 200,
    "s": 10.345,
    "l": 22.745
  },
  "oklch": {
    "l": 0.3503,
    "c": 0.0128,
    "h": 229.3
  },
  "luminance": 0.04332
}

Semantic roles & 50–950 ramp

primary

#343C40

secondary

#6F6560

accent

#8975B3

background

#F6F6F7

surface

#EBECED

border

#C6C7C8

text

#060708

muted

#7A7A7B

Preview Lab

Preview with #343C40

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

Preview Lab → · Contrast checker → · Palette generator →