#172F4D#172F4D

#172F4D is a dark, moderate cyan. Relative luminance 0.028; OKLCH L 30.2% C 0.062 H 255.0°. Best body text is #FFFFFF at 13.55:1 contrast (WCAG AA passes).

Color values

HEX	#172F4D
RGB	rgb(23, 47, 77)
HSL	hsl(213, 54%, 20%)
HSV	hsv(213, 70%, 30%)
CMYK	cmyk(70.1%, 39%, 0%, 69.8%)
CIE-LAB	lab(19.02, 1.79, -21.27)
CIE-LCH	lch(19.02, 21.35, 274.82°)
OKLab	oklab(30.21% -0.0162 -0.0603)
OKLCH	oklch(30.21% 0.062 255)
XYZ	xyz(2.7089, 2.7508, 7.4079)
Luminance	0.0275 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172F4D #4D3517

analogous

#174A4D #172F4D #1A174D

triadic

#172F4D #4D172F #2F4D17

tetradic

#172F4D #4D174A #4D3517 #174D1A

square

#172F4D #4D174A #4D3517 #174D1A

split-complementary

#172F4D #4D1A17 #4A4D17

monochromatic

#070E18 #09121E #172F4D #254C7C #3369AB

Accessibility & contrast

On white

13.55

#172F4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#172F4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172F4D

13.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172F4D	#FFFFFF	#000000	##FFFFFF
##172F4D	1.00	13.55	1.55	13.55
#FFFFFF	13.55	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#22314E

Deuteranopia (green-blind)

#1B2C4C

Tritanopia (blue-blind)

#00363A

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #172f4d;
/* rgb */ color: rgb(23, 47, 77);
/* oklch */ color: oklch(30.2% 0.062 255.0);

Tailwind

colors: {
  custom: {
    50: '#5a677f',
    500: '#172f4d',
    950: '#000000',
  },
}

SCSS

$custom: #172f4d;
$custom-light: #5a677f;
$custom-dark: #000000;

JSON

{
  "hex": "#172f4d",
  "rgb": {
    "r": 23,
    "g": 47,
    "b": 77
  },
  "hsl": {
    "h": 213.333,
    "s": 54,
    "l": 19.608
  },
  "oklch": {
    "l": 0.30215,
    "c": 0.06245,
    "h": 255
  },
  "luminance": 0.02751
}

Semantic roles & 50–950 ramp

primary

#172F4D

secondary

#84643C

accent

#9C4ADD

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04060A

muted

#797A7C

Preview Lab

Preview with #172F4D

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

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