#173151#173151

#173151 is a dark, moderate cyan. Relative luminance 0.030; OKLCH L 31.0% C 0.066 H 254.7°. Best body text is #FFFFFF at 13.17:1 contrast (WCAG AA passes).

Color values

HEX	#173151
RGB	rgb(23, 49, 81)
HSL	hsl(213, 56%, 20%)
HSV	hsv(213, 72%, 32%)
CMYK	cmyk(71.6%, 39.5%, 0%, 68.2%)
CIE-LAB	lab(19.93, 2.00, -22.51)
CIE-LCH	lch(19.93, 22.60, 275.08°)
OKLab	oklab(31.01% -0.0174 -0.0639)
OKLCH	oklch(31.01% 0.066 254.7)
XYZ	xyz(2.9363, 2.9726, 8.2020)
Luminance	0.0297 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173151 #513717

analogous

#174E51 #173151 #1A1751

triadic

#173151 #511731 #315117

tetradic

#173151 #51174E #513717 #17511A

square

#173151 #51174E #513717 #17511A

split-complementary

#173151 #511A17 #4E5117

monochromatic

#070E18 #091421 #173151 #254E81 #326BB0

Accessibility & contrast

On white

13.17

#173151 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#173151 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173151

13.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173151	#FFFFFF	#000000	##FFFFFF
##173151	1.00	13.17	1.59	13.17
#FFFFFF	13.17	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#233352

Deuteranopia (green-blind)

#1B2E50

Tritanopia (blue-blind)

#00383D

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #173151;
/* rgb */ color: rgb(23, 49, 81);
/* oklch */ color: oklch(31.0% 0.066 254.7);

Tailwind

colors: {
  custom: {
    50: '#5b6882',
    500: '#173151',
    950: '#000000',
  },
}

SCSS

$custom: #173151;
$custom-light: #5b6882;
$custom-dark: #000000;

JSON

{
  "hex": "#173151",
  "rgb": {
    "r": 23,
    "g": 49,
    "b": 81
  },
  "hsl": {
    "h": 213.103,
    "s": 55.769,
    "l": 20.392
  },
  "oklch": {
    "l": 0.3101,
    "c": 0.06623,
    "h": 254.7
  },
  "luminance": 0.02973
}

Semantic roles & 50–950 ramp

primary

#173151

secondary

#88663C

accent

#9C49DF

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04060A

muted

#797A7C

Preview Lab

Preview with #173151

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

Preview Lab → · Contrast checker → · Palette generator →