#173F6E#173F6E

#173F6E is a dark, moderate cyan. Relative luminance 0.049; OKLCH L 36.6% C 0.093 H 254.5°. Best body text is #FFFFFF at 10.65:1 contrast (WCAG AA passes).

Color values

HEX	#173F6E
RGB	rgb(23, 63, 110)
HSL	hsl(212, 65%, 26%)
HSV	hsv(212, 79%, 43%)
CMYK	cmyk(79.1%, 42.7%, 0%, 56.9%)
CIE-LAB	lab(26.34, 4.15, -31.27)
CIE-LCH	lch(26.34, 31.54, 277.57°)
OKLab	oklab(36.59% -0.0247 -0.0893)
OKLCH	oklch(36.59% 0.093 254.5)
XYZ	xyz(4.9443, 4.8624, 15.4268)
Luminance	0.0486 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173F6E #6E4617

analogous

#176A6E #173F6E #1A176E

triadic

#173F6E #6E173F #3F6E17

tetradic

#173F6E #6E176A #6E4617 #176E1A

square

#173F6E #6E176A #6E4617 #176E1A

split-complementary

#173F6E #6E1A17 #6A6E17

monochromatic

#050E19 #0C223B #173F6E #225CA1 #2C79D3

Accessibility & contrast

On white

10.65

#173F6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#173F6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173F6E

10.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173F6E	#FFFFFF	#000000	##FFFFFF
##173F6E	1.00	10.65	1.97	10.65
#FFFFFF	10.65	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#284370

Deuteranopia (green-blind)

#1A3B6D

Tritanopia (blue-blind)

#004A51

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #173f6e;
/* rgb */ color: rgb(23, 63, 110);
/* oklch */ color: oklch(36.6% 0.093 254.5);

Tailwind

colors: {
  custom: {
    50: '#627398',
    500: '#173f6e',
    950: '#000000',
  },
}

SCSS

$custom: #173f6e;
$custom-light: #627398;
$custom-dark: #000000;

JSON

{
  "hex": "#173f6e",
  "rgb": {
    "r": 23,
    "g": 63,
    "b": 110
  },
  "hsl": {
    "h": 212.414,
    "s": 65.414,
    "l": 26.078
  },
  "oklch": {
    "l": 0.36589,
    "c": 0.09266,
    "h": 254.5
  },
  "luminance": 0.04863
}

Semantic roles & 50–950 ramp

primary

#173F6E

secondary

#A4753D

accent

#9B3FE8

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06080D

muted

#7A7B7E

Preview Lab

Preview with #173F6E

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

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