#172F4E#172F4E

#172F4E is a dark, moderate cyan. Relative luminance 0.028; OKLCH L 30.3% C 0.064 H 255.6°. Best body text is #FFFFFF at 13.52:1 contrast (WCAG AA passes).

Color values

HEX	#172F4E
RGB	rgb(23, 47, 78)
HSL	hsl(214, 54%, 20%)
HSV	hsv(214, 71%, 31%)
CMYK	cmyk(70.5%, 39.7%, 0%, 69.4%)
CIE-LAB	lab(19.08, 2.20, -21.85)
CIE-LCH	lch(19.08, 21.96, 275.75°)
OKLab	oklab(30.28% -0.0159 -0.062)
OKLCH	oklch(30.28% 0.064 255.6)
XYZ	xyz(2.7445, 2.7650, 7.5953)
Luminance	0.0277 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172F4E #4E3617

analogous

#174B4E #172F4E #1B174E

triadic

#172F4E #4E172F #2F4E17

tetradic

#172F4E #4E174B #4E3617 #174E1B

square

#172F4E #4E174B #4E3617 #174E1B

split-complementary

#172F4E #4E1B17 #4B4E17

monochromatic

#070E18 #09131F #172F4E #254B7D #3368AD

Accessibility & contrast

On white

13.52

#172F4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#172F4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172F4E

13.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172F4E	#FFFFFF	#000000	##FFFFFF
##172F4E	1.00	13.52	1.55	13.52
#FFFFFF	13.52	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#22314F

Deuteranopia (green-blind)

#1A2C4D

Tritanopia (blue-blind)

#00363A

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #172f4e;
/* rgb */ color: rgb(23, 47, 78);
/* oklch */ color: oklch(30.3% 0.064 255.6);

Tailwind

colors: {
  custom: {
    50: '#5b6780',
    500: '#172f4e',
    950: '#000000',
  },
}

SCSS

$custom: #172f4e;
$custom-light: #5b6780;
$custom-dark: #000000;

JSON

{
  "hex": "#172f4e",
  "rgb": {
    "r": 23,
    "g": 47,
    "b": 78
  },
  "hsl": {
    "h": 213.818,
    "s": 54.455,
    "l": 19.804
  },
  "oklch": {
    "l": 0.30282,
    "c": 0.06401,
    "h": 255.6
  },
  "luminance": 0.02765
}

Semantic roles & 50–950 ramp

primary

#172F4E

secondary

#85653C

accent

#9D4ADE

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04060A

muted

#797A7C

Preview Lab

Preview with #172F4E

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

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