#174A9E#174A9E

#174A9E is a dark, vivid blue. Relative luminance 0.075; OKLCH L 42.8% C 0.147 H 260.1°. Best body text is #FFFFFF at 8.37:1 contrast (WCAG AA passes).

Color values

HEX	#174A9E
RGB	rgb(23, 74, 158)
HSL	hsl(217, 75%, 35%)
HSV	hsv(217, 85%, 62%)
CMYK	cmyk(85.4%, 53.2%, 0%, 38%)
CIE-LAB	lab(33.02, 16.36, -50.26)
CIE-LCH	lch(33.02, 52.86, 288.02°)
OKLab	oklab(42.8% -0.0252 -0.145)
OKLCH	oklch(42.8% 0.147 260.1)
XYZ	xyz(8.9714, 7.5472, 33.3250)
Luminance	0.0755 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#174A9E #9E6B17

analogous

#178E9E #174A9E #27179E

triadic

#174A9E #9E174A #4A9E17

tetradic

#174A9E #9E178E #9E6B17 #179E27

square

#174A9E #9E178E #9E6B17 #179E27

split-complementary

#174A9E #9E2717 #8E9E17

monochromatic

#071833 #0F3169 #174A9E #1F63D3 #4B85E5

Accessibility & contrast

On white

8.37

#174A9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#174A9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #174A9E

8.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##174A9E	#FFFFFF	#000000	##FFFFFF
##174A9E	1.00	8.37	2.51	8.37
#FFFFFF	8.37	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B54A1

Deuteranopia (green-blind)

#00489C

Tritanopia (blue-blind)

#005F6C

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #174a9e;
/* rgb */ color: rgb(23, 74, 158);
/* oklch */ color: oklch(42.8% 0.147 260.1);

Tailwind

colors: {
  custom: {
    50: '#6e7bbb',
    500: '#174a9e',
    950: '#000000',
  },
}

SCSS

$custom: #174a9e;
$custom-light: #6e7bbb;
$custom-dark: #000000;

JSON

{
  "hex": "#174a9e",
  "rgb": {
    "r": 23,
    "g": 74,
    "b": 158
  },
  "hsl": {
    "h": 217.333,
    "s": 74.586,
    "l": 35.49
  },
  "oklch": {
    "l": 0.42802,
    "c": 0.14713,
    "h": 260.1
  },
  "luminance": 0.07548
}

Semantic roles & 50–950 ramp

primary

#174A9E

secondary

#C6984A

accent

#AB37F1

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080912

muted

#7B7B81

Preview Lab

Preview with #174A9E

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

Preview Lab → · Contrast checker → · Palette generator →