#174A99#174A99

#174A99 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 42.4% C 0.140 H 259.4°. Best body text is #FFFFFF at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#174A99
RGB	rgb(23, 74, 153)
HSL	hsl(216, 74%, 35%)
HSV	hsv(216, 85%, 60%)
CMYK	cmyk(85%, 51.6%, 0%, 40%)
CIE-LAB	lab(32.65, 14.32, -47.83)
CIE-LCH	lch(32.65, 49.93, 286.66°)
OKLab	oklab(42.4% -0.0259 -0.1378)
OKLCH	oklch(42.4% 0.14 259.4)
XYZ	xyz(8.5498, 7.3786, 31.1044)
Luminance	0.0738 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#174A99 #996617

analogous

#178B99 #174A99 #251799

triadic

#174A99 #99174A #4A9917

tetradic

#174A99 #99178B #996617 #179925

square

#174A99 #99178B #996617 #179925

split-complementary

#174A99 #992517 #8B9917

monochromatic

#07172F #0F3064 #174A99 #1F64CE #4784E3

Accessibility & contrast

On white

8.48

#174A99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#174A99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #174A99

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##174A99	#FFFFFF	#000000	##FFFFFF
##174A99	1.00	8.48	2.48	8.48
#FFFFFF	8.48	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16539C

Deuteranopia (green-blind)

#004797

Tritanopia (blue-blind)

#005D6A

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #174a99;
/* rgb */ color: rgb(23, 74, 153);
/* oklch */ color: oklch(42.4% 0.140 259.4);

Tailwind

colors: {
  custom: {
    50: '#6c7bb8',
    500: '#174a99',
    950: '#000000',
  },
}

SCSS

$custom: #174a99;
$custom-light: #6c7bb8;
$custom-dark: #000000;

JSON

{
  "hex": "#174a99",
  "rgb": {
    "r": 23,
    "g": 74,
    "b": 153
  },
  "hsl": {
    "h": 216.462,
    "s": 73.864,
    "l": 34.51
  },
  "oklch": {
    "l": 0.42404,
    "c": 0.14022,
    "h": 259.4
  },
  "luminance": 0.0738
}

Semantic roles & 50–950 ramp

primary

#174A99

secondary

#C59347

accent

#A837F1

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #174A99

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

Preview Lab → · Contrast checker → · Palette generator →