#172F43#172F43

#172F43 is a dark, muted cyan. Relative luminance 0.026; OKLCH L 29.6% C 0.047 H 245.5°. Best body text is #FFFFFF at 13.78:1 contrast (WCAG AA passes).

Color values

HEX	#172F43
RGB	rgb(23, 47, 67)
HSL	hsl(207, 49%, 18%)
HSV	hsv(207, 66%, 26%)
CMYK	cmyk(65.7%, 29.9%, 0%, 73.7%)
CIE-LAB	lab(18.45, -2.17, -15.37)
CIE-LCH	lch(18.45, 15.52, 261.94°)
OKLab	oklab(29.59% -0.0197 -0.0431)
OKLCH	oklch(29.59% 0.047 245.5)
XYZ	xyz(2.3826, 2.6202, 5.6893)
Luminance	0.0262 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172F43 #432B17

analogous

#174341 #172F43 #171943

triadic

#172F43 #43172F #2F4317

tetradic

#172F43 #411743 #432B17 #194317

square

#172F43 #411743 #432B17 #194317

split-complementary

#172F43 #431719 #434117

monochromatic

#081017 #081017 #172F43 #274F71 #366F9E

Accessibility & contrast

On white

13.78

#172F43 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#172F43 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172F43

13.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172F43	#FFFFFF	#000000	##FFFFFF
##172F43	1.00	13.78	1.52	13.78
#FFFFFF	13.78	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#262F44

Deuteranopia (green-blind)

#202B43

Tritanopia (blue-blind)

#003436

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #172f43;
/* rgb */ color: rgb(23, 47, 67);
/* oklch */ color: oklch(29.6% 0.047 245.5);

Tailwind

colors: {
  custom: {
    50: '#596777',
    500: '#172f43',
    950: '#000000',
  },
}

SCSS

$custom: #172f43;
$custom-light: #596777;
$custom-dark: #000000;

JSON

{
  "hex": "#172f43",
  "rgb": {
    "r": 23,
    "g": 47,
    "b": 67
  },
  "hsl": {
    "h": 207.273,
    "s": 48.889,
    "l": 17.647
  },
  "oklch": {
    "l": 0.29588,
    "c": 0.04742,
    "h": 245.5
  },
  "luminance": 0.0262
}

Semantic roles & 50–950 ramp

primary

#172F43

secondary

#7A583C

accent

#8E4FD8

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#040608

muted

#797A7B

Preview Lab

Preview with #172F43

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

Preview Lab → · Contrast checker → · Palette generator →