#173E65#173E65

#173E65 is a dark, moderate cyan. Relative luminance 0.046; OKLCH L 35.7% C 0.081 H 251.1°. Best body text is #FFFFFF at 10.98:1 contrast (WCAG AA passes).

Color values

HEX	#173E65
RGB	rgb(23, 62, 101)
HSL	hsl(210, 63%, 24%)
HSV	hsv(210, 77%, 40%)
CMYK	cmyk(77.2%, 38.6%, 0%, 60.4%)
CIE-LAB	lab(25.46, 1.14, -26.89)
CIE-LCH	lch(25.46, 26.91, 272.43°)
OKLab	oklab(35.73% -0.0261 -0.0765)
OKLCH	oklch(35.73% 0.081 251.1)
XYZ	xyz(4.4241, 4.5665, 12.9577)
Luminance	0.0457 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173E65 #653E17

analogous

#176565 #173E65 #171765

triadic

#173E65 #65173E #3E6517

tetradic

#173E65 #651765 #653E17 #176517

square

#173E65 #651765 #653E17 #176517

split-complementary

#173E65 #651717 #656517

monochromatic

#060F19 #0C1F33 #173E65 #225D97 #2E7BC9

Accessibility & contrast

On white

10.98

#173E65 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#173E65 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173E65

10.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173E65	#FFFFFF	#000000	##FFFFFF
##173E65	1.00	10.98	1.91	10.98
#FFFFFF	10.98	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C4067

Deuteranopia (green-blind)

#213964

Tritanopia (blue-blind)

#00474C

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #173e65;
/* rgb */ color: rgb(23, 62, 101);
/* oklch */ color: oklch(35.7% 0.081 251.1);

Tailwind

colors: {
  custom: {
    50: '#607291',
    500: '#173e65',
    950: '#000000',
  },
}

SCSS

$custom: #173e65;
$custom-light: #607291;
$custom-dark: #000000;

JSON

{
  "hex": "#173e65",
  "rgb": {
    "r": 23,
    "g": 62,
    "b": 101
  },
  "hsl": {
    "h": 210,
    "s": 62.903,
    "l": 24.314
  },
  "oklch": {
    "l": 0.35725,
    "c": 0.08084,
    "h": 251.1
  },
  "luminance": 0.04567
}

Semantic roles & 50–950 ramp

primary

#173E65

secondary

#9B6C3C

accent

#9442E6

background

#F5F6F8

surface

#EAECF0

border

#C6C7CB

text

#05080C

muted

#797B7D

Preview Lab

Preview with #173E65

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

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