#173F62#173F62

#173F62 is a dark, moderate cyan. Relative luminance 0.046; OKLCH L 35.8% C 0.076 H 248.1°. Best body text is #FFFFFF at 10.92:1 contrast (WCAG AA passes).

Color values

HEX	#173F62
RGB	rgb(23, 63, 98)
HSL	hsl(208, 62%, 24%)
HSV	hsv(208, 77%, 38%)
CMYK	cmyk(76.5%, 35.7%, 0%, 61.6%)
CIE-LAB	lab(25.62, -0.75, -24.70)
CIE-LCH	lch(25.62, 24.72, 268.25°)
OKLab	oklab(35.79% -0.0281 -0.0701)
OKLCH	oklch(35.79% 0.076 248.1)
XYZ	xyz(4.3346, 4.6185, 12.2159)
Luminance	0.0462 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173F62 #623A17

analogous

#17625F #173F62 #171962

triadic

#173F62 #62173F #3F6217

tetradic

#173F62 #5F1762 #623A17 #196217

square

#173F62 #5F1762 #623A17 #196217

split-complementary

#173F62 #621719 #625F17

monochromatic

#061019 #0B1F30 #173F62 #235F94 #2E7FC5

Accessibility & contrast

On white

10.92

#173F62 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#173F62 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173F62

10.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173F62	#FFFFFF	#000000	##FFFFFF
##173F62	1.00	10.92	1.92	10.92
#FFFFFF	10.92	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F4163

Deuteranopia (green-blind)

#253A61

Tritanopia (blue-blind)

#00474C

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #173f62;
/* rgb */ color: rgb(23, 63, 98);
/* oklch */ color: oklch(35.8% 0.076 248.1);

Tailwind

colors: {
  custom: {
    50: '#5f738f',
    500: '#173f62',
    950: '#000000',
  },
}

SCSS

$custom: #173f62;
$custom-light: #5f738f;
$custom-dark: #000000;

JSON

{
  "hex": "#173f62",
  "rgb": {
    "r": 23,
    "g": 63,
    "b": 98
  },
  "hsl": {
    "h": 208,
    "s": 61.983,
    "l": 23.725
  },
  "oklch": {
    "l": 0.35791,
    "c": 0.07553,
    "h": 248.1
  },
  "luminance": 0.04619
}

Semantic roles & 50–950 ramp

primary

#173F62

secondary

#99673C

accent

#8E43E5

background

#F5F6F8

surface

#EAECF0

border

#C6C7CB

text

#05080C

muted

#797B7D

Preview Lab

Preview with #173F62

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

Preview Lab → · Contrast checker → · Palette generator →