#172F4C#172F4C

#172F4C is a dark, moderate cyan. Relative luminance 0.027; OKLCH L 30.1% C 0.061 H 254.3°. Best body text is #FFFFFF at 13.57:1 contrast (WCAG AA passes).

Color values

HEX	#172F4C
RGB	rgb(23, 47, 76)
HSL	hsl(213, 54%, 19%)
HSV	hsv(213, 70%, 30%)
CMYK	cmyk(69.7%, 38.2%, 0%, 70.2%)
CIE-LAB	lab(18.96, 1.39, -20.69)
CIE-LCH	lch(18.96, 20.74, 273.85°)
OKLab	oklab(30.15% -0.0165 -0.0586)
OKLCH	oklch(30.15% 0.061 254.3)
XYZ	xyz(2.6739, 2.7367, 7.2234)
Luminance	0.0274 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172F4C #4C3417

analogous

#174A4C #172F4C #1A174C

triadic

#172F4C #4C172F #2F4C17

tetradic

#172F4C #4C174A #4C3417 #174C1A

square

#172F4C #4C174A #4C3417 #174C1A

split-complementary

#172F4C #4C1A17 #4A4C17

monochromatic

#070F17 #09121D #172F4C #254C7B #3369AA

Accessibility & contrast

On white

13.57

#172F4C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#172F4C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172F4C

13.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172F4C	#FFFFFF	#000000	##FFFFFF
##172F4C	1.00	13.57	1.55	13.57
#FFFFFF	13.57	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#23314D

Deuteranopia (green-blind)

#1B2C4B

Tritanopia (blue-blind)

#00363A

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #172f4c;
/* rgb */ color: rgb(23, 47, 76);
/* oklch */ color: oklch(30.1% 0.061 254.3);

Tailwind

colors: {
  custom: {
    50: '#5a677e',
    500: '#172f4c',
    950: '#000000',
  },
}

SCSS

$custom: #172f4c;
$custom-light: #5a677e;
$custom-dark: #000000;

JSON

{
  "hex": "#172f4c",
  "rgb": {
    "r": 23,
    "g": 47,
    "b": 76
  },
  "hsl": {
    "h": 212.83,
    "s": 53.535,
    "l": 19.412
  },
  "oklch": {
    "l": 0.30149,
    "c": 0.06089,
    "h": 254.3
  },
  "luminance": 0.02737
}

Semantic roles & 50–950 ramp

primary

#172F4C

secondary

#83633C

accent

#9B4BDD

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04060A

muted

#797A7C

Preview Lab

Preview with #172F4C

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

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