#174D99#174D99

#174D99 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.1% C 0.136 H 258.1°. Best body text is #FFFFFF at 8.21:1 contrast (WCAG AA passes).

Color values

HEX	#174D99
RGB	rgb(23, 77, 153)
HSL	hsl(215, 74%, 35%)
HSV	hsv(215, 85%, 60%)
CMYK	cmyk(85%, 49.7%, 0%, 40%)
CIE-LAB	lab(33.54, 12.28, -46.40)
CIE-LCH	lch(33.54, 48.00, 284.82°)
OKLab	oklab(43.08% -0.0281 -0.1335)
OKLCH	oklch(43.08% 0.136 258.1)
XYZ	xyz(8.7549, 7.7887, 31.1728)
Luminance	0.0779 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#174D99 #996317

analogous

#178E99 #174D99 #221799

triadic

#174D99 #99174D #4D9917

tetradic

#174D99 #99178E #996317 #179922

square

#174D99 #99178E #996317 #179922

split-complementary

#174D99 #992217 #8E9917

monochromatic

#07172F #0F3264 #174D99 #1F68CE #4788E3

Accessibility & contrast

On white

8.21

#174D99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#174D99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #174D99

8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##174D99	#FFFFFF	#000000	##FFFFFF
##174D99	1.00	8.21	2.56	8.21
#FFFFFF	8.21	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#20559C

Deuteranopia (green-blind)

#004997

Tritanopia (blue-blind)

#005F6B

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #174d99;
/* rgb */ color: rgb(23, 77, 153);
/* oklch */ color: oklch(43.1% 0.136 258.1);

Tailwind

colors: {
  custom: {
    50: '#6c7eb8',
    500: '#174d99',
    950: '#000000',
  },
}

SCSS

$custom: #174d99;
$custom-light: #6c7eb8;
$custom-dark: #000000;

JSON

{
  "hex": "#174d99",
  "rgb": {
    "r": 23,
    "g": 77,
    "b": 153
  },
  "hsl": {
    "h": 215.077,
    "s": 73.864,
    "l": 34.51
  },
  "oklch": {
    "l": 0.43084,
    "c": 0.13646,
    "h": 258.1
  },
  "luminance": 0.0779
}

Semantic roles & 50–950 ramp

primary

#174D99

secondary

#C59047

accent

#A437F1

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #174D99

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

Preview Lab → · Contrast checker → · Palette generator →