#343E40#343E40

#343E40 is a dark, near-neutral cyan. Relative luminance 0.045; OKLCH L 35.5% C 0.014 H 211.1°. Best body text is #FFFFFF at 11.00:1 contrast (WCAG AA passes).

Color values

HEX	#343E40
RGB	rgb(52, 62, 64)
HSL	hsl(190, 10%, 23%)
HSV	hsv(190, 19%, 25%)
CMYK	cmyk(18.8%, 3.1%, 0%, 74.9%)
CIE-LAB	lab(25.40, -3.60, -2.61)
CIE-LCH	lch(25.40, 4.45, 215.96°)
OKLab	oklab(35.55% -0.0117 -0.0071)
OKLCH	oklch(35.55% 0.014 211.1)
XYZ	xyz(4.0640, 4.5454, 5.5127)
Luminance	0.0454 (WCAG relative)
Temperature	neutral
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343E40 #403634

analogous

#34403C #343E40 #343840

triadic

#343E40 #40343E #3E4034

tetradic

#343E40 #3C3440 #403634 #384034

square

#343E40 #3C3440 #403634 #384034

split-complementary

#343E40 #403438 #403C34

monochromatic

#0E1011 #191D1E #343E40 #4F5F62 #6B7F84

Accessibility & contrast

On white

11.00

#343E40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#343E40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343E40

11.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343E40	#FFFFFF	#000000	##FFFFFF
##343E40	1.00	11.00	1.91	11.00
#FFFFFF	11.00	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C3D40

Deuteranopia (green-blind)

#3A3B40

Tritanopia (blue-blind)

#313F3F

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #343e40;
/* rgb */ color: rgb(52, 62, 64);
/* oklch */ color: oklch(35.5% 0.014 211.1);

Tailwind

colors: {
  custom: {
    50: '#6b7374',
    500: '#343e40',
    950: '#000000',
  },
}

SCSS

$custom: #343e40;
$custom-light: #6b7374;
$custom-dark: #000000;

JSON

{
  "hex": "#343e40",
  "rgb": {
    "r": 52,
    "g": 62,
    "b": 64
  },
  "hsl": {
    "h": 190,
    "s": 10.345,
    "l": 22.745
  },
  "oklch": {
    "l": 0.3555,
    "c": 0.0137,
    "h": 211.1
  },
  "luminance": 0.04545
}

Semantic roles & 50–950 ramp

primary

#343E40

secondary

#6F6360

accent

#7F75B3

background

#F6F6F7

surface

#EBECED

border

#C6C7C8

text

#060808

muted

#7A7B7B

Preview Lab

Preview with #343E40

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

Preview Lab → · Contrast checker → · Palette generator →