#174B99#174B99

#174B99 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 42.6% C 0.139 H 259.0°. Best body text is #FFFFFF at 8.39:1 contrast (WCAG AA passes).

Color values

HEX	#174B99
RGB	rgb(23, 75, 153)
HSL	hsl(216, 74%, 35%)
HSV	hsv(216, 85%, 60%)
CMYK	cmyk(85%, 51%, 0%, 40%)
CIE-LAB	lab(32.95, 13.64, -47.36)
CIE-LCH	lch(32.95, 49.28, 286.06°)
OKLab	oklab(42.63% -0.0266 -0.1364)
OKLCH	oklch(42.63% 0.139 259)
XYZ	xyz(8.6171, 7.5131, 31.1268)
Luminance	0.0751 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#174B99 #996517

analogous

#178C99 #174B99 #241799

triadic

#174B99 #99174B #4B9917

tetradic

#174B99 #99178C #996517 #179924

square

#174B99 #99178C #996517 #179924

split-complementary

#174B99 #992417 #8C9917

monochromatic

#07172F #0F3164 #174B99 #1F65CE #4786E3

Accessibility & contrast

On white

8.39

#174B99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#174B99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #174B99

8.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##174B99	#FFFFFF	#000000	##FFFFFF
##174B99	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)

#1A549C

Deuteranopia (green-blind)

#004897

Tritanopia (blue-blind)

#005E6A

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #174b99;
/* rgb */ color: rgb(23, 75, 153);
/* oklch */ color: oklch(42.6% 0.139 259.0);

Tailwind

colors: {
  custom: {
    50: '#6c7cb8',
    500: '#174b99',
    950: '#000000',
  },
}

SCSS

$custom: #174b99;
$custom-light: #6c7cb8;
$custom-dark: #000000;

JSON

{
  "hex": "#174b99",
  "rgb": {
    "r": 23,
    "g": 75,
    "b": 153
  },
  "hsl": {
    "h": 216,
    "s": 73.864,
    "l": 34.51
  },
  "oklch": {
    "l": 0.4263,
    "c": 0.13896,
    "h": 259
  },
  "luminance": 0.07514
}

Semantic roles & 50–950 ramp

primary

#174B99

secondary

#C59247

accent

#A637F1

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #174B99

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

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