#173E40#173E40

#173E40 is a dark, muted teal. Relative luminance 0.040; OKLCH L 33.7% C 0.044 H 199.9°. Best body text is #FFFFFF at 11.67:1 contrast (WCAG AA passes).

Color values

HEX	#173E40
RGB	rgb(23, 62, 64)
HSL	hsl(183, 47%, 17%)
HSV	hsv(183, 64%, 25%)
CMYK	cmyk(64.1%, 3.1%, 0%, 74.9%)
CIE-LAB	lab(23.66, -12.93, -5.38)
CIE-LCH	lch(23.66, 14.00, 202.60°)
OKLab	oklab(33.7% -0.0411 -0.0149)
OKLCH	oklch(33.7% 0.044 199.9)
XYZ	xyz(3.0010, 3.9973, 5.4629)
Luminance	0.0400 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173E40 #401917

analogous

#17402E #173E40 #172A40

triadic

#173E40 #40173E #3E4017

tetradic

#173E40 #2E1740 #401917 #2A4017

square

#173E40 #2E1740 #401917 #2A4017

split-complementary

#173E40 #40172A #402E17

monochromatic

#081617 #081617 #173E40 #276A6D #37959A

Accessibility & contrast

On white

11.67

#173E40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#173E40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173E40

11.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173E40	#FFFFFF	#000000	##FFFFFF
##173E40	1.00	11.67	1.80	11.67
#FFFFFF	11.67	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#393B40

Deuteranopia (green-blind)

#333640

Tritanopia (blue-blind)

#00403E

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #173e40;
/* rgb */ color: rgb(23, 62, 64);
/* oklch */ color: oklch(33.7% 0.044 199.9);

Tailwind

colors: {
  custom: {
    50: '#597374',
    500: '#173e40',
    950: '#000000',
  },
}

SCSS

$custom: #173e40;
$custom-light: #597374;
$custom-dark: #000000;

JSON

{
  "hex": "#173e40",
  "rgb": {
    "r": 23,
    "g": 62,
    "b": 64
  },
  "hsl": {
    "h": 182.927,
    "s": 47.126,
    "l": 17.059
  },
  "oklch": {
    "l": 0.33702,
    "c": 0.04376,
    "h": 199.9
  },
  "luminance": 0.03998
}

Semantic roles & 50–950 ramp

primary

#173E40

secondary

#773F3C

accent

#5851D7

background

#F5F7F7

surface

#E9EDED

border

#C5C8C8

text

#040808

muted

#797B7B

Preview Lab

Preview with #173E40

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

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