#172E4E#172E4E

#172E4E is a dark, moderate cyan. Relative luminance 0.027; OKLCH L 30.0% C 0.065 H 257.0°. Best body text is #FFFFFF at 13.66:1 contrast (WCAG AA passes).

Color values

HEX	#172E4E
RGB	rgb(23, 46, 78)
HSL	hsl(215, 54%, 20%)
HSV	hsv(215, 71%, 31%)
CMYK	cmyk(70.5%, 41%, 0%, 69.4%)
CIE-LAB	lab(18.74, 2.92, -22.39)
CIE-LCH	lch(18.74, 22.58, 277.42°)
OKLab	oklab(30.02% -0.0147 -0.0636)
OKLCH	oklch(30.02% 0.065 257)
XYZ	xyz(2.7050, 2.6859, 7.5821)
Luminance	0.0269 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172E4E #4E3717

analogous

#174A4E #172E4E #1C174E

triadic

#172E4E #4E172E #2E4E17

tetradic

#172E4E #4E174A #4E3717 #174E1C

square

#172E4E #4E174A #4E3717 #174E1C

split-complementary

#172E4E #4E1C17 #4A4E17

monochromatic

#070E18 #09121F #172E4E #254A7D #3366AD

Accessibility & contrast

On white

13.66

#172E4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#172E4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172E4E

13.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172E4E	#FFFFFF	#000000	##FFFFFF
##172E4E	1.00	13.66	1.54	13.66
#FFFFFF	13.66	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#20304F

Deuteranopia (green-blind)

#182B4D

Tritanopia (blue-blind)

#00353A

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #172e4e;
/* rgb */ color: rgb(23, 46, 78);
/* oklch */ color: oklch(30.0% 0.065 257.0);

Tailwind

colors: {
  custom: {
    50: '#5b6680',
    500: '#172e4e',
    950: '#000000',
  },
}

SCSS

$custom: #172e4e;
$custom-light: #5b6680;
$custom-dark: #000000;

JSON

{
  "hex": "#172e4e",
  "rgb": {
    "r": 23,
    "g": 46,
    "b": 78
  },
  "hsl": {
    "h": 214.909,
    "s": 54.455,
    "l": 19.804
  },
  "oklch": {
    "l": 0.30019,
    "c": 0.06524,
    "h": 257
  },
  "luminance": 0.02686
}

Semantic roles & 50–950 ramp

primary

#172E4E

secondary

#85663C

accent

#A04ADE

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04050A

muted

#797A7C

Preview Lab

Preview with #172E4E

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

Preview Lab → · Contrast checker → · Palette generator →