#173251#173251

#173251 is a dark, moderate cyan. Relative luminance 0.031; OKLCH L 31.3% C 0.065 H 253.4°. Best body text is #FFFFFF at 13.03:1 contrast (WCAG AA passes).

Color values

HEX	#173251
RGB	rgb(23, 50, 81)
HSL	hsl(212, 56%, 20%)
HSV	hsv(212, 72%, 32%)
CMYK	cmyk(71.6%, 38.3%, 0%, 68.2%)
CIE-LAB	lab(20.27, 1.30, -21.98)
CIE-LCH	lch(20.27, 22.02, 273.38°)
OKLab	oklab(31.27% -0.0186 -0.0623)
OKLCH	oklch(31.27% 0.065 253.4)
XYZ	xyz(2.9786, 3.0571, 8.2161)
Luminance	0.0306 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173251 #513617

analogous

#174F51 #173251 #191751

triadic

#173251 #511732 #325117

tetradic

#173251 #51174F #513617 #175119

square

#173251 #51174F #513617 #175119

split-complementary

#173251 #511917 #4F5117

monochromatic

#070F18 #091521 #173251 #254F81 #326DB0

Accessibility & contrast

On white

13.03

#173251 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#173251 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173251

13.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173251	#FFFFFF	#000000	##FFFFFF
##173251	1.00	13.03	1.61	13.03
#FFFFFF	13.03	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#243452

Deuteranopia (green-blind)

#1C2E50

Tritanopia (blue-blind)

#00393D

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #173251;
/* rgb */ color: rgb(23, 50, 81);
/* oklch */ color: oklch(31.3% 0.065 253.4);

Tailwind

colors: {
  custom: {
    50: '#5b6982',
    500: '#173251',
    950: '#000000',
  },
}

SCSS

$custom: #173251;
$custom-light: #5b6982;
$custom-dark: #000000;

JSON

{
  "hex": "#173251",
  "rgb": {
    "r": 23,
    "g": 50,
    "b": 81
  },
  "hsl": {
    "h": 212.069,
    "s": 55.769,
    "l": 20.392
  },
  "oklch": {
    "l": 0.31273,
    "c": 0.06505,
    "h": 253.4
  },
  "luminance": 0.03057
}

Semantic roles & 50–950 ramp

primary

#173251

secondary

#88653C

accent

#9949DF

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04060A

muted

#797A7C

Preview Lab

Preview with #173251

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

Preview Lab → · Contrast checker → · Palette generator →