#173648#173648

#173648 is a dark, muted cyan. Relative luminance 0.033; OKLCH L 31.8% C 0.049 H 236.6°. Best body text is #FFFFFF at 12.67:1 contrast (WCAG AA passes).

Color values

HEX	#173648
RGB	rgb(23, 54, 72)
HSL	hsl(202, 52%, 19%)
HSV	hsv(202, 68%, 28%)
CMYK	cmyk(68.1%, 25%, 0%, 71.8%)
CIE-LAB	lab(21.16, -5.00, -14.55)
CIE-LCH	lch(21.16, 15.38, 251.04°)
OKLab	oklab(31.82% -0.0269 -0.0407)
OKLCH	oklch(31.82% 0.049 236.6)
XYZ	xyz(2.8418, 3.2881, 6.6145)
Luminance	0.0329 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173648 #482917

analogous

#174841 #173648 #171D48

triadic

#173648 #481736 #364817

tetradic

#173648 #411748 #482917 #1D4817

square

#173648 #411748 #482917 #1D4817

split-complementary

#173648 #48171D #484117

monochromatic

#071117 #08131A #173648 #265976 #357CA5

Accessibility & contrast

On white

12.67

#173648 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#173648 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173648

12.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173648	#FFFFFF	#000000	##FFFFFF
##173648	1.00	12.67	1.66	12.67
#FFFFFF	12.67	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E3649

Deuteranopia (green-blind)

#273148

Tritanopia (blue-blind)

#003B3C

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #173648;
/* rgb */ color: rgb(23, 54, 72);
/* oklch */ color: oklch(31.8% 0.049 236.6);

Tailwind

colors: {
  custom: {
    50: '#5a6c7b',
    500: '#173648',
    950: '#000000',
  },
}

SCSS

$custom: #173648;
$custom-light: #5a6c7b;
$custom-dark: #000000;

JSON

{
  "hex": "#173648",
  "rgb": {
    "r": 23,
    "g": 54,
    "b": 72
  },
  "hsl": {
    "h": 202.041,
    "s": 51.579,
    "l": 18.627
  },
  "oklch": {
    "l": 0.31816,
    "c": 0.04883,
    "h": 236.6
  },
  "luminance": 0.03288
}

Semantic roles & 50–950 ramp

primary

#173648

secondary

#7F543C

accent

#814DDB

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#040709

muted

#797A7B

Preview Lab

Preview with #173648

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

Preview Lab → · Contrast checker → · Palette generator →