#173E6E#173E6E

#173E6E is a dark, moderate cyan. Relative luminance 0.048; OKLCH L 36.3% C 0.094 H 255.4°. Best body text is #FFFFFF at 10.77:1 contrast (WCAG AA passes).

Color values

HEX	#173E6E
RGB	rgb(23, 62, 110)
HSL	hsl(213, 65%, 26%)
HSV	hsv(213, 79%, 43%)
CMYK	cmyk(79.1%, 43.6%, 0%, 56.9%)
CIE-LAB	lab(26.02, 4.84, -31.78)
CIE-LCH	lch(26.02, 32.15, 278.67°)
OKLab	oklab(36.34% -0.0237 -0.0908)
OKLCH	oklch(36.34% 0.094 255.4)
XYZ	xyz(4.8894, 4.7526, 15.4085)
Luminance	0.0475 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173E6E #6E4717

analogous

#17696E #173E6E #1B176E

triadic

#173E6E #6E173E #3E6E17

tetradic

#173E6E #6E1769 #6E4717 #176E1B

square

#173E6E #6E1769 #6E4717 #176E1B

split-complementary

#173E6E #6E1B17 #696E17

monochromatic

#050E19 #0C213B #173E6E #225BA1 #2C77D3

Accessibility & contrast

On white

10.77

#173E6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#173E6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173E6E

10.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173E6E	#FFFFFF	#000000	##FFFFFF
##173E6E	1.00	10.77	1.95	10.77
#FFFFFF	10.77	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#274270

Deuteranopia (green-blind)

#183A6D

Tritanopia (blue-blind)

#004950

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #173e6e;
/* rgb */ color: rgb(23, 62, 110);
/* oklch */ color: oklch(36.3% 0.094 255.4);

Tailwind

colors: {
  custom: {
    50: '#627298',
    500: '#173e6e',
    950: '#000000',
  },
}

SCSS

$custom: #173e6e;
$custom-light: #627298;
$custom-dark: #000000;

JSON

{
  "hex": "#173e6e",
  "rgb": {
    "r": 23,
    "g": 62,
    "b": 110
  },
  "hsl": {
    "h": 213.103,
    "s": 65.414,
    "l": 26.078
  },
  "oklch": {
    "l": 0.36339,
    "c": 0.09389,
    "h": 255.4
  },
  "luminance": 0.04753
}

Semantic roles & 50–950 ramp

primary

#173E6E

secondary

#A4763D

accent

#9D3FE8

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06080D

muted

#7A7B7E

Preview Lab

Preview with #173E6E

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

Preview Lab → · Contrast checker → · Palette generator →