#17405A#17405A

#17405A is a dark, moderate cyan. Relative luminance 0.046; OKLCH L 35.6% C 0.064 H 240.0°. Best body text is #FFFFFF at 10.95:1 contrast (WCAG AA passes).

Color values

HEX	#17405A
RGB	rgb(23, 64, 90)
HSL	hsl(203, 59%, 22%)
HSV	hsv(203, 74%, 35%)
CMYK	cmyk(74.4%, 28.9%, 0%, 64.7%)
CIE-LAB	lab(25.52, -4.61, -19.67)
CIE-LCH	lch(25.52, 20.20, 256.82°)
OKLab	oklab(35.57% -0.032 -0.0554)
OKLCH	oklch(35.57% 0.064 240)
XYZ	xyz(4.0315, 4.5867, 10.3437)
Luminance	0.0459 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17405A #5A3117

analogous

#175A53 #17405A #171E5A

triadic

#17405A #5A1740 #405A17

tetradic

#17405A #53175A #5A3117 #1E5A17

square

#17405A #53175A #5A3117 #1E5A17

split-complementary

#17405A #5A171E #5A5317

monochromatic

#061118 #0B1D29 #17405A #23638B #3085BB

Accessibility & contrast

On white

10.95

#17405A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#17405A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17405A

10.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17405A	#FFFFFF	#000000	##FFFFFF
##17405A	1.00	10.95	1.92	10.95
#FFFFFF	10.95	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#34405B

Deuteranopia (green-blind)

#2B3A5A

Tritanopia (blue-blind)

#004749

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #17405a;
/* rgb */ color: rgb(23, 64, 90);
/* oklch */ color: oklch(35.6% 0.064 240.0);

Tailwind

colors: {
  custom: {
    50: '#5d7488',
    500: '#17405a',
    950: '#000000',
  },
}

SCSS

$custom: #17405a;
$custom-light: #5d7488;
$custom-dark: #000000;

JSON

{
  "hex": "#17405a",
  "rgb": {
    "r": 23,
    "g": 64,
    "b": 90
  },
  "hsl": {
    "h": 203.284,
    "s": 59.292,
    "l": 22.157
  },
  "oklch": {
    "l": 0.35573,
    "c": 0.06402,
    "h": 240
  },
  "luminance": 0.04587
}

Semantic roles & 50–950 ramp

primary

#17405A

secondary

#915D3C

accent

#8245E2

background

#F5F7F8

surface

#E9EDF0

border

#C5C8CB

text

#05080B

muted

#797B7C

Preview Lab

Preview with #17405A

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

Preview Lab → · Contrast checker → · Palette generator →