#17374E#17374E

#17374E is a dark, muted cyan. Relative luminance 0.035; OKLCH L 32.4% C 0.056 H 242.4°. Best body text is #FFFFFF at 12.40:1 contrast (WCAG AA passes).

Color values

HEX	#17374E
RGB	rgb(23, 55, 78)
HSL	hsl(205, 54%, 20%)
HSV	hsv(205, 71%, 31%)
CMYK	cmyk(70.5%, 29.5%, 0%, 69.4%)
CIE-LAB	lab(21.81, -3.34, -17.55)
CIE-LCH	lch(21.81, 17.87, 259.21°)
OKLab	oklab(32.43% -0.0258 -0.0494)
OKLCH	oklch(32.43% 0.056 242.4)
XYZ	xyz(3.0942, 3.4643, 7.7119)
Luminance	0.0347 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17374E #4E2E17

analogous

#174E4A #17374E #171C4E

triadic

#17374E #4E1737 #374E17

tetradic

#17374E #4A174E #4E2E17 #1C4E17

square

#17374E #4A174E #4E2E17 #1C4E17

split-complementary

#17374E #4E171C #4E4A17

monochromatic

#071118 #09161F #17374E #25587D #337AAD

Accessibility & contrast

On white

12.40

#17374E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#17374E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17374E

12.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17374E	#FFFFFF	#000000	##FFFFFF
##17374E	1.00	12.40	1.69	12.40
#FFFFFF	12.40	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D374F

Deuteranopia (green-blind)

#25324E

Tritanopia (blue-blind)

#003D3F

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #17374e;
/* rgb */ color: rgb(23, 55, 78);
/* oklch */ color: oklch(32.4% 0.056 242.4);

Tailwind

colors: {
  custom: {
    50: '#5b6d7f',
    500: '#17374e',
    950: '#000000',
  },
}

SCSS

$custom: #17374e;
$custom-light: #5b6d7f;
$custom-dark: #000000;

JSON

{
  "hex": "#17374e",
  "rgb": {
    "r": 23,
    "g": 55,
    "b": 78
  },
  "hsl": {
    "h": 205.091,
    "s": 54.455,
    "l": 19.804
  },
  "oklch": {
    "l": 0.32433,
    "c": 0.05572,
    "h": 242.4
  },
  "luminance": 0.03465
}

Semantic roles & 50–950 ramp

primary

#17374E

secondary

#855A3C

accent

#884ADE

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04070A

muted

#797A7C

Preview Lab

Preview with #17374E

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

Preview Lab → · Contrast checker → · Palette generator →