#174D9F#174D9F

#174D9F is a dark, vivid blue. Relative luminance 0.080; OKLCH L 43.5% C 0.145 H 259.2°. Best body text is #FFFFFF at 8.08:1 contrast (WCAG AA passes).

Color values

HEX	#174D9F
RGB	rgb(23, 77, 159)
HSL	hsl(216, 75%, 36%)
HSV	hsv(216, 86%, 62%)
CMYK	cmyk(85.5%, 51.6%, 0%, 37.6%)
CIE-LAB	lab(33.97, 14.72, -49.34)
CIE-LCH	lch(33.97, 51.49, 286.62°)
OKLab	oklab(43.55% -0.0272 -0.1422)
OKLCH	oklch(43.55% 0.145 259.2)
XYZ	xyz(9.2629, 7.9920, 33.8486)
Luminance	0.0799 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#174D9F #9F6917

analogous

#17919F #174D9F #25179F

triadic

#174D9F #9F174D #4D9F17

tetradic

#174D9F #9F1791 #9F6917 #179F25

square

#174D9F #9F1791 #9F6917 #179F25

split-complementary

#174D9F #9F2517 #919F17

monochromatic

#081934 #0F336A #174D9F #1F67D4 #4B88E5

Accessibility & contrast

On white

8.08

#174D9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#174D9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #174D9F

8.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##174D9F	#FFFFFF	#000000	##FFFFFF
##174D9F	1.00	8.08	2.60	8.08
#FFFFFF	8.08	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1756A2

Deuteranopia (green-blind)

#004A9D

Tritanopia (blue-blind)

#00616E

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #174d9f;
/* rgb */ color: rgb(23, 77, 159);
/* oklch */ color: oklch(43.5% 0.145 259.2);

Tailwind

colors: {
  custom: {
    50: '#6e7ebc',
    500: '#174d9f',
    950: '#000000',
  },
}

SCSS

$custom: #174d9f;
$custom-light: #6e7ebc;
$custom-dark: #000000;

JSON

{
  "hex": "#174d9f",
  "rgb": {
    "r": 23,
    "g": 77,
    "b": 159
  },
  "hsl": {
    "h": 216.176,
    "s": 74.725,
    "l": 35.686
  },
  "oklch": {
    "l": 0.43547,
    "c": 0.14475,
    "h": 259.2
  },
  "luminance": 0.07993
}

Semantic roles & 50–950 ramp

primary

#174D9F

secondary

#C7964B

accent

#A736F1

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080912

muted

#7B7B81

Preview Lab

Preview with #174D9F

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

Preview Lab → · Contrast checker → · Palette generator →