#174A9D#174A9D

#174A9D is a dark, vivid blue. Relative luminance 0.075; OKLCH L 42.7% C 0.146 H 260.0°. Best body text is #FFFFFF at 8.39:1 contrast (WCAG AA passes).

Color values

HEX	#174A9D
RGB	rgb(23, 74, 157)
HSL	hsl(217, 74%, 35%)
HSV	hsv(217, 85%, 62%)
CMYK	cmyk(85.4%, 52.9%, 0%, 38.4%)
CIE-LAB	lab(32.95, 15.95, -49.78)
CIE-LCH	lch(32.95, 52.27, 287.76°)
OKLab	oklab(42.72% -0.0253 -0.1435)
OKLCH	oklch(42.72% 0.146 260)
XYZ	xyz(8.8857, 7.5129, 32.8736)
Luminance	0.0751 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#174A9D #9D6A17

analogous

#178D9D #174A9D #27179D

triadic

#174A9D #9D174A #4A9D17

tetradic

#174A9D #9D178D #9D6A17 #179D27

square

#174A9D #9D178D #9D6A17 #179D27

split-complementary

#174A9D #9D2717 #8D9D17

monochromatic

#071832 #0F3168 #174A9D #1F63D2 #4A85E4

Accessibility & contrast

On white

8.39

#174A9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#174A9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #174A9D

8.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##174A9D	#FFFFFF	#000000	##FFFFFF
##174A9D	1.00	8.39	2.50	8.39
#FFFFFF	8.39	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E54A0

Deuteranopia (green-blind)

#00489B

Tritanopia (blue-blind)

#005E6C

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #174a9d;
/* rgb */ color: rgb(23, 74, 157);
/* oklch */ color: oklch(42.7% 0.146 260.0);

Tailwind

colors: {
  custom: {
    50: '#6d7bbb',
    500: '#174a9d',
    950: '#000000',
  },
}

SCSS

$custom: #174a9d;
$custom-light: #6d7bbb;
$custom-dark: #000000;

JSON

{
  "hex": "#174a9d",
  "rgb": {
    "r": 23,
    "g": 74,
    "b": 157
  },
  "hsl": {
    "h": 217.164,
    "s": 74.444,
    "l": 35.294
  },
  "oklch": {
    "l": 0.42722,
    "c": 0.14576,
    "h": 260
  },
  "luminance": 0.07514
}

Semantic roles & 50–950 ramp

primary

#174A9D

secondary

#C6974A

accent

#AA37F1

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080912

muted

#7B7B81

Preview Lab

Preview with #174A9D

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

Preview Lab → · Contrast checker → · Palette generator →