#173350#173350

#173350 is a dark, moderate cyan. Relative luminance 0.031; OKLCH L 31.5% C 0.062 H 251.2°. Best body text is #FFFFFF at 12.92:1 contrast (WCAG AA passes).

Color values

HEX	#173350
RGB	rgb(23, 51, 80)
HSL	hsl(211, 55%, 20%)
HSV	hsv(211, 71%, 31%)
CMYK	cmyk(71.2%, 36.3%, 0%, 68.6%)
CIE-LAB	lab(20.55, 0.19, -20.87)
CIE-LCH	lch(20.55, 20.87, 270.53°)
OKLab	oklab(31.47% -0.0201 -0.0591)
OKLCH	oklch(31.47% 0.062 251.2)
XYZ	xyz(2.9846, 3.1287, 8.0345)
Luminance	0.0313 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173350 #503417

analogous

#175050 #173350 #171750

triadic

#173350 #501733 #335017

tetradic

#173350 #501750 #503417 #175017

square

#173350 #501750 #503417 #175017

split-complementary

#173350 #501717 #505017

monochromatic

#070F18 #091520 #173350 #255180 #3270AF

Accessibility & contrast

On white

12.92

#173350 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#173350 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173350

12.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173350	#FFFFFF	#000000	##FFFFFF
##173350	1.00	12.92	1.63	12.92
#FFFFFF	12.92	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#263551

Deuteranopia (green-blind)

#1F2F4F

Tritanopia (blue-blind)

#003A3D

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #173350;
/* rgb */ color: rgb(23, 51, 80);
/* oklch */ color: oklch(31.5% 0.062 251.2);

Tailwind

colors: {
  custom: {
    50: '#5b6a81',
    500: '#173350',
    950: '#000000',
  },
}

SCSS

$custom: #173350;
$custom-light: #5b6a81;
$custom-dark: #000000;

JSON

{
  "hex": "#173350",
  "rgb": {
    "r": 23,
    "g": 51,
    "b": 80
  },
  "hsl": {
    "h": 210.526,
    "s": 55.34,
    "l": 20.196
  },
  "oklch": {
    "l": 0.31474,
    "c": 0.06241,
    "h": 251.2
  },
  "luminance": 0.03129
}

Semantic roles & 50–950 ramp

primary

#173350

secondary

#87623C

accent

#9549DF

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04060A

muted

#797A7C

Preview Lab

Preview with #173350

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

Preview Lab → · Contrast checker → · Palette generator →