#172B45#172B45

#172B45 is a dark, muted cyan. Relative luminance 0.023; OKLCH L 28.6% C 0.055 H 255.6°. Best body text is #FFFFFF at 14.31:1 contrast (WCAG AA passes).

Color values

HEX	#172B45
RGB	rgb(23, 43, 69)
HSL	hsl(214, 50%, 18%)
HSV	hsv(214, 67%, 27%)
CMYK	cmyk(66.7%, 37.7%, 0%, 72.9%)
CIE-LAB	lab(17.18, 1.43, -18.74)
CIE-LCH	lch(17.18, 18.79, 274.37°)
OKLab	oklab(28.62% -0.0136 -0.053)
OKLCH	oklch(28.62% 0.055 255.6)
XYZ	xyz(2.2910, 2.3394, 5.9599)
Luminance	0.0234 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172B45 #453117

analogous

#174245 #172B45 #1A1745

triadic

#172B45 #45172B #2B4517

tetradic

#172B45 #451742 #453117 #17451A

square

#172B45 #451742 #453117 #17451A

split-complementary

#172B45 #451A17 #424517

monochromatic

#080E17 #080E17 #172B45 #264873 #3664A1

Accessibility & contrast

On white

14.31

#172B45 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#172B45 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172B45

14.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172B45	#FFFFFF	#000000	##FFFFFF
##172B45	1.00	14.31	1.47	14.31
#FFFFFF	14.31	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#202D46

Deuteranopia (green-blind)

#1A2844

Tritanopia (blue-blind)

#003134

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #172b45;
/* rgb */ color: rgb(23, 43, 69);
/* oklch */ color: oklch(28.6% 0.055 255.6);

Tailwind

colors: {
  custom: {
    50: '#596479',
    500: '#172b45',
    950: '#000000',
  },
}

SCSS

$custom: #172b45;
$custom-light: #596479;
$custom-dark: #000000;

JSON

{
  "hex": "#172b45",
  "rgb": {
    "r": 23,
    "g": 43,
    "b": 69
  },
  "hsl": {
    "h": 213.913,
    "s": 50,
    "l": 18.039
  },
  "oklch": {
    "l": 0.28622,
    "c": 0.05468,
    "h": 255.6
  },
  "luminance": 0.0234
}

Semantic roles & 50–950 ramp

primary

#172B45

secondary

#7C603C

accent

#9D4EDA

background

#F5F5F7

surface

#E9EAED

border

#C5C6C8

text

#040509

muted

#79797B

Preview Lab

Preview with #172B45

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

Preview Lab → · Contrast checker → · Palette generator →