#174F8A#174F8A

#174F8A is a dark, moderate cyan. Relative luminance 0.076; OKLCH L 42.5% C 0.113 H 253.2°. Best body text is #FFFFFF at 8.33:1 contrast (WCAG AA passes).

Color values

HEX	#174F8A
RGB	rgb(23, 79, 138)
HSL	hsl(211, 71%, 32%)
HSV	hsv(211, 83%, 54%)
CMYK	cmyk(83.3%, 42.8%, 0%, 45.9%)
CIE-LAB	lab(33.15, 4.81, -37.89)
CIE-LCH	lch(33.15, 38.19, 277.23°)
OKLab	oklab(42.47% -0.0327 -0.1084)
OKLCH	oklch(42.47% 0.113 253.2)
XYZ	xyz(7.7351, 7.6082, 25.1007)
Luminance	0.0761 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#174F8A #8A5217

analogous

#17898A #174F8A #19178A

triadic

#174F8A #8A174F #4F8A17

tetradic

#174F8A #8A1789 #8A5217 #178A19

square

#174F8A #8A1789 #8A5217 #178A19

split-complementary

#174F8A #8A1917 #898A17

monochromatic

#061321 #0E3156 #174F8A #206DBE #3D8CDF

Accessibility & contrast

On white

8.33

#174F8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#174F8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #174F8A

8.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##174F8A	#FFFFFF	#000000	##FFFFFF
##174F8A	1.00	8.33	2.52	8.33
#FFFFFF	8.33	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#32548C

Deuteranopia (green-blind)

#1D4989

Tritanopia (blue-blind)

#005D65

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #174f8a;
/* rgb */ color: rgb(23, 79, 138);
/* oklch */ color: oklch(42.5% 0.113 253.2);

Tailwind

colors: {
  custom: {
    50: '#687fac',
    500: '#174f8a',
    950: '#000000',
  },
}

SCSS

$custom: #174f8a;
$custom-light: #687fac;
$custom-dark: #000000;

JSON

{
  "hex": "#174f8a",
  "rgb": {
    "r": 23,
    "g": 79,
    "b": 138
  },
  "hsl": {
    "h": 210.783,
    "s": 71.429,
    "l": 31.569
  },
  "oklch": {
    "l": 0.42466,
    "c": 0.11327,
    "h": 253.2
  },
  "luminance": 0.07609
}

Semantic roles & 50–950 ramp

primary

#174F8A

secondary

#BE803F

accent

#963AEE

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #174F8A

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

Preview Lab → · Contrast checker → · Palette generator →