#172F45#172F45

#172F45 is a dark, muted cyan. Relative luminance 0.026; OKLCH L 29.7% C 0.050 H 247.9°. Best body text is #FFFFFF at 13.73:1 contrast (WCAG AA passes).

Color values

HEX	#172F45
RGB	rgb(23, 47, 69)
HSL	hsl(209, 50%, 18%)
HSV	hsv(209, 67%, 27%)
CMYK	cmyk(66.7%, 31.9%, 0%, 72.9%)
CIE-LAB	lab(18.56, -1.39, -16.57)
CIE-LCH	lch(18.56, 16.62, 265.19°)
OKLab	oklab(29.71% -0.0189 -0.0466)
OKLCH	oklch(29.71% 0.05 247.9)
XYZ	xyz(2.4437, 2.6446, 6.0108)
Luminance	0.0265 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172F45 #452D17

analogous

#174544 #172F45 #171845

triadic

#172F45 #45172F #2F4517

tetradic

#172F45 #441745 #452D17 #184517

square

#172F45 #441745 #452D17 #184517

split-complementary

#172F45 #451718 #454417

monochromatic

#081017 #081017 #172F45 #264E73 #366EA1

Accessibility & contrast

On white

13.73

#172F45 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#172F45 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172F45

13.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172F45	#FFFFFF	#000000	##FFFFFF
##172F45	1.00	13.73	1.53	13.73
#FFFFFF	13.73	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#263046

Deuteranopia (green-blind)

#1F2B45

Tritanopia (blue-blind)

#003437

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #172f45;
/* rgb */ color: rgb(23, 47, 69);
/* oklch */ color: oklch(29.7% 0.050 247.9);

Tailwind

colors: {
  custom: {
    50: '#596778',
    500: '#172f45',
    950: '#000000',
  },
}

SCSS

$custom: #172f45;
$custom-light: #596778;
$custom-dark: #000000;

JSON

{
  "hex": "#172f45",
  "rgb": {
    "r": 23,
    "g": 47,
    "b": 69
  },
  "hsl": {
    "h": 208.696,
    "s": 50,
    "l": 18.039
  },
  "oklch": {
    "l": 0.29707,
    "c": 0.0503,
    "h": 247.9
  },
  "luminance": 0.02645
}

Semantic roles & 50–950 ramp

primary

#172F45

secondary

#7C5B3C

accent

#914EDA

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#040609

muted

#797A7B

Preview Lab

Preview with #172F45

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

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