#174A9F#174A9F

#174A9F is a dark, vivid blue. Relative luminance 0.076; OKLCH L 42.9% C 0.149 H 260.3°. Best body text is #FFFFFF at 8.34:1 contrast (WCAG AA passes).

Color values

HEX	#174A9F
RGB	rgb(23, 74, 159)
HSL	hsl(218, 75%, 36%)
HSV	hsv(218, 86%, 62%)
CMYK	cmyk(85.5%, 53.5%, 0%, 37.6%)
CIE-LAB	lab(33.10, 16.76, -50.74)
CIE-LCH	lch(33.10, 53.44, 288.28°)
OKLab	oklab(42.88% -0.0251 -0.1464)
OKLCH	oklch(42.88% 0.149 260.3)
XYZ	xyz(9.0579, 7.5818, 33.7802)
Luminance	0.0758 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#174A9F #9F6C17

analogous

#178E9F #174A9F #28179F

triadic

#174A9F #9F174A #4A9F17

tetradic

#174A9F #9F178E #9F6C17 #179F28

square

#174A9F #9F178E #9F6C17 #179F28

split-complementary

#174A9F #9F2817 #8E9F17

monochromatic

#081834 #0F316A #174A9F #1F63D4 #4B85E5

Accessibility & contrast

On white

8.34

#174A9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#174A9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #174A9F

8.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##174A9F	#FFFFFF	#000000	##FFFFFF
##174A9F	1.00	8.34	2.52	8.34
#FFFFFF	8.34	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0854A2

Deuteranopia (green-blind)

#00489D

Tritanopia (blue-blind)

#005F6D

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #174a9f;
/* rgb */ color: rgb(23, 74, 159);
/* oklch */ color: oklch(42.9% 0.149 260.3);

Tailwind

colors: {
  custom: {
    50: '#6e7bbc',
    500: '#174a9f',
    950: '#000000',
  },
}

SCSS

$custom: #174a9f;
$custom-light: #6e7bbc;
$custom-dark: #000000;

JSON

{
  "hex": "#174a9f",
  "rgb": {
    "r": 23,
    "g": 74,
    "b": 159
  },
  "hsl": {
    "h": 217.5,
    "s": 74.725,
    "l": 35.686
  },
  "oklch": {
    "l": 0.42883,
    "c": 0.14851,
    "h": 260.3
  },
  "luminance": 0.07583
}

Semantic roles & 50–950 ramp

primary

#174A9F

secondary

#C7984B

accent

#AB36F1

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080912

muted

#7B7B81

Preview Lab

Preview with #174A9F

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

Preview Lab → · Contrast checker → · Palette generator →