#173E6D#173E6D

#173E6D is a dark, moderate cyan. Relative luminance 0.047; OKLCH L 36.3% C 0.092 H 255.0°. Best body text is #FFFFFF at 10.79:1 contrast (WCAG AA passes).

Color values

HEX	#173E6D
RGB	rgb(23, 62, 109)
HSL	hsl(213, 65%, 26%)
HSV	hsv(213, 79%, 43%)
CMYK	cmyk(78.9%, 43.1%, 0%, 57.3%)
CIE-LAB	lab(25.95, 4.43, -31.24)
CIE-LCH	lch(25.95, 31.55, 278.07°)
OKLab	oklab(36.27% -0.024 -0.0893)
OKLCH	oklch(36.27% 0.092 255)
XYZ	xyz(4.8353, 4.7310, 15.1234)
Luminance	0.0473 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173E6D #6D4617

analogous

#17696D #173E6D #1B176D

triadic

#173E6D #6D173E #3E6D17

tetradic

#173E6D #6D1769 #6D4617 #176D1B

square

#173E6D #6D1769 #6D4617 #176D1B

split-complementary

#173E6D #6D1B17 #696D17

monochromatic

#050E19 #0C213A #173E6D #225BA0 #2C77D2

Accessibility & contrast

On white

10.79

#173E6D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#173E6D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173E6D

10.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173E6D	#FFFFFF	#000000	##FFFFFF
##173E6D	1.00	10.79	1.95	10.79
#FFFFFF	10.79	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#27426F

Deuteranopia (green-blind)

#193A6C

Tritanopia (blue-blind)

#004950

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #173e6d;
/* rgb */ color: rgb(23, 62, 109);
/* oklch */ color: oklch(36.3% 0.092 255.0);

Tailwind

colors: {
  custom: {
    50: '#627297',
    500: '#173e6d',
    950: '#000000',
  },
}

SCSS

$custom: #173e6d;
$custom-light: #627297;
$custom-dark: #000000;

JSON

{
  "hex": "#173e6d",
  "rgb": {
    "r": 23,
    "g": 62,
    "b": 109
  },
  "hsl": {
    "h": 212.791,
    "s": 65.152,
    "l": 25.882
  },
  "oklch": {
    "l": 0.36269,
    "c": 0.09242,
    "h": 255
  },
  "luminance": 0.04732
}

Semantic roles & 50–950 ramp

primary

#173E6D

secondary

#A3753D

accent

#9C40E8

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06080D

muted

#7A7B7E

Preview Lab

Preview with #173E6D

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

Preview Lab → · Contrast checker → · Palette generator →