#172E4C#172E4C

#172E4C is a dark, moderate cyan. Relative luminance 0.027; OKLCH L 29.9% C 0.062 H 255.8°. Best body text is #FFFFFF at 13.71:1 contrast (WCAG AA passes).

Color values

HEX	#172E4C
RGB	rgb(23, 46, 76)
HSL	hsl(214, 54%, 19%)
HSV	hsv(214, 70%, 30%)
CMYK	cmyk(69.7%, 39.5%, 0%, 70.2%)
CIE-LAB	lab(18.62, 2.10, -21.23)
CIE-LCH	lch(18.62, 21.33, 275.66°)
OKLab	oklab(29.88% -0.0153 -0.0602)
OKLCH	oklch(29.88% 0.062 255.8)
XYZ	xyz(2.6344, 2.6577, 7.2102)
Luminance	0.0266 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172E4C #4C3517

analogous

#17494C #172E4C #1B174C

triadic

#172E4C #4C172E #2E4C17

tetradic

#172E4C #4C1749 #4C3517 #174C1B

square

#172E4C #4C1749 #4C3517 #174C1B

split-complementary

#172E4C #4C1B17 #494C17

monochromatic

#070E17 #09121D #172E4C #254A7B #3367AA

Accessibility & contrast

On white

13.71

#172E4C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#172E4C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172E4C

13.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172E4C	#FFFFFF	#000000	##FFFFFF
##172E4C	1.00	13.71	1.53	13.71
#FFFFFF	13.71	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#21304D

Deuteranopia (green-blind)

#1A2B4B

Tritanopia (blue-blind)

#003539

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #172e4c;
/* rgb */ color: rgb(23, 46, 76);
/* oklch */ color: oklch(29.9% 0.062 255.8);

Tailwind

colors: {
  custom: {
    50: '#5a667e',
    500: '#172e4c',
    950: '#000000',
  },
}

SCSS

$custom: #172e4c;
$custom-light: #5a667e;
$custom-dark: #000000;

JSON

{
  "hex": "#172e4c",
  "rgb": {
    "r": 23,
    "g": 46,
    "b": 76
  },
  "hsl": {
    "h": 213.962,
    "s": 53.535,
    "l": 19.412
  },
  "oklch": {
    "l": 0.29883,
    "c": 0.0621,
    "h": 255.8
  },
  "luminance": 0.02658
}

Semantic roles & 50–950 ramp

primary

#172E4C

secondary

#83643C

accent

#9E4BDD

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04050A

muted

#797A7C

Preview Lab

Preview with #172E4C

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

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