#172F4F#172F4F

#172F4F is a dark, moderate cyan. Relative luminance 0.028; OKLCH L 30.3% C 0.066 H 256.2°. Best body text is #FFFFFF at 13.50:1 contrast (WCAG AA passes).

Color values

HEX	#172F4F
RGB	rgb(23, 47, 79)
HSL	hsl(214, 55%, 20%)
HSV	hsv(214, 71%, 31%)
CMYK	cmyk(70.9%, 40.5%, 0%, 69%)
CIE-LAB	lab(19.14, 2.61, -22.43)
CIE-LCH	lch(19.14, 22.58, 276.63°)
OKLab	oklab(30.35% -0.0156 -0.0637)
OKLCH	oklch(30.35% 0.066 256.2)
XYZ	xyz(2.7806, 2.7794, 7.7856)
Luminance	0.0278 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172F4F #4F3717

analogous

#174B4F #172F4F #1B174F

triadic

#172F4F #4F172F #2F4F17

tetradic

#172F4F #4F174B #4F3717 #174F1B

square

#172F4F #4F174B #4F3717 #174F1B

split-complementary

#172F4F #4F1B17 #4B4F17

monochromatic

#070E18 #091320 #172F4F #254B7E #3367AE

Accessibility & contrast

On white

13.50

#172F4F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#172F4F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172F4F

13.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172F4F	#FFFFFF	#000000	##FFFFFF
##172F4F	1.00	13.50	1.56	13.50
#FFFFFF	13.50	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#213150

Deuteranopia (green-blind)

#192C4E

Tritanopia (blue-blind)

#00363B

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #172f4f;
/* rgb */ color: rgb(23, 47, 79);
/* oklch */ color: oklch(30.3% 0.066 256.2);

Tailwind

colors: {
  custom: {
    50: '#5b6780',
    500: '#172f4f',
    950: '#000000',
  },
}

SCSS

$custom: #172f4f;
$custom-light: #5b6780;
$custom-dark: #000000;

JSON

{
  "hex": "#172f4f",
  "rgb": {
    "r": 23,
    "g": 47,
    "b": 79
  },
  "hsl": {
    "h": 214.286,
    "s": 54.902,
    "l": 20
  },
  "oklch": {
    "l": 0.30349,
    "c": 0.06557,
    "h": 256.2
  },
  "luminance": 0.0278
}

Semantic roles & 50–950 ramp

primary

#172F4F

secondary

#86663C

accent

#9F4ADE

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04060A

muted

#797A7C

Preview Lab

Preview with #172F4F

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

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