#172F50#172F50

#172F50 is a dark, moderate cyan. Relative luminance 0.028; OKLCH L 30.4% C 0.067 H 256.8°. Best body text is #FFFFFF at 13.47:1 contrast (WCAG AA passes).

Color values

HEX	#172F50
RGB	rgb(23, 47, 80)
HSL	hsl(215, 55%, 20%)
HSV	hsv(215, 71%, 31%)
CMYK	cmyk(71.2%, 41.3%, 0%, 68.6%)
CIE-LAB	lab(19.20, 3.02, -23.00)
CIE-LCH	lch(19.20, 23.20, 277.47°)
OKLab	oklab(30.42% -0.0153 -0.0654)
OKLCH	oklch(30.42% 0.067 256.8)
XYZ	xyz(2.8173, 2.7941, 7.9787)
Luminance	0.0279 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172F50 #503817

analogous

#174B50 #172F50 #1B1750

triadic

#172F50 #50172F #2F5017

tetradic

#172F50 #50174B #503817 #17501B

square

#172F50 #50174B #503817 #17501B

split-complementary

#172F50 #501B17 #4B5017

monochromatic

#070E18 #091320 #172F50 #254B80 #3267AF

Accessibility & contrast

On white

13.47

#172F50 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#172F50 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172F50

13.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172F50	#FFFFFF	#000000	##FFFFFF
##172F50	1.00	13.47	1.56	13.47
#FFFFFF	13.47	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#203151

Deuteranopia (green-blind)

#182C4F

Tritanopia (blue-blind)

#00373B

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #172f50;
/* rgb */ color: rgb(23, 47, 80);
/* oklch */ color: oklch(30.4% 0.067 256.8);

Tailwind

colors: {
  custom: {
    50: '#5b6781',
    500: '#172f50',
    950: '#000000',
  },
}

SCSS

$custom: #172f50;
$custom-light: #5b6781;
$custom-dark: #000000;

JSON

{
  "hex": "#172f50",
  "rgb": {
    "r": 23,
    "g": 47,
    "b": 80
  },
  "hsl": {
    "h": 214.737,
    "s": 55.34,
    "l": 20.196
  },
  "oklch": {
    "l": 0.30417,
    "c": 0.06714,
    "h": 256.8
  },
  "luminance": 0.02794
}

Semantic roles & 50–950 ramp

primary

#172F50

secondary

#87673C

accent

#A049DF

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04060A

muted

#797A7C

Preview Lab

Preview with #172F50

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

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