#17404B#17404B

#17404B is a dark, muted cyan. Relative luminance 0.044; OKLCH L 34.8% C 0.049 H 218.4°. Best body text is #FFFFFF at 11.22:1 contrast (WCAG AA passes).

Color values

HEX	#17404B
RGB	rgb(23, 64, 75)
HSL	hsl(193, 53%, 19%)
HSV	hsv(193, 69%, 29%)
CMYK	cmyk(69.3%, 14.7%, 0%, 70.6%)
CIE-LAB	lab(24.82, -10.29, -10.93)
CIE-LCH	lch(24.82, 15.01, 226.73°)
OKLab	oklab(34.78% -0.0383 -0.0304)
OKLCH	oklch(34.78% 0.049 218.4)
XYZ	xyz(3.4562, 4.3566, 7.3140)
Luminance	0.0436 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17404B #4B2217

analogous

#174B3C #17404B #17264B

triadic

#17404B #4B1740 #404B17

tetradic

#17404B #3C174B #4B2217 #264B17

square

#17404B #3C174B #4B2217 #264B17

split-complementary

#17404B #4B1726 #4B3C17

monochromatic

#071417 #09181C #17404B #25687A #3490A9

Accessibility & contrast

On white

11.22

#17404B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#17404B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17404B

11.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17404B	#FFFFFF	#000000	##FFFFFF
##17404B	1.00	11.22	1.87	11.22
#FFFFFF	11.22	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#393E4C

Deuteranopia (green-blind)

#31384B

Tritanopia (blue-blind)

#004443

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #17404b;
/* rgb */ color: rgb(23, 64, 75);
/* oklch */ color: oklch(34.8% 0.049 218.4);

Tailwind

colors: {
  custom: {
    50: '#5b757d',
    500: '#17404b',
    950: '#000000',
  },
}

SCSS

$custom: #17404b;
$custom-light: #5b757d;
$custom-dark: #000000;

JSON

{
  "hex": "#17404b",
  "rgb": {
    "r": 23,
    "g": 64,
    "b": 75
  },
  "hsl": {
    "h": 192.692,
    "s": 53.061,
    "l": 19.216
  },
  "oklch": {
    "l": 0.34777,
    "c": 0.04893,
    "h": 218.4
  },
  "luminance": 0.04357
}

Semantic roles & 50–950 ramp

primary

#17404B

secondary

#824B3C

accent

#6A4BDC

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#040809

muted

#797B7B

Preview Lab

Preview with #17404B

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

Preview Lab → · Contrast checker → · Palette generator →