#174F9F#174F9F

#174F9F is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.0% C 0.142 H 258.4°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#174F9F
RGB	rgb(23, 79, 159)
HSL	hsl(215, 75%, 36%)
HSV	hsv(215, 86%, 62%)
CMYK	cmyk(85.5%, 50.3%, 0%, 37.6%)
CIE-LAB	lab(34.55, 13.37, -48.39)
CIE-LCH	lch(34.55, 50.20, 285.45°)
OKLab	oklab(44% -0.0286 -0.1393)
OKLCH	oklch(44% 0.142 258.4)
XYZ	xyz(9.4050, 8.2761, 33.8959)
Luminance	0.0828 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#174F9F #9F6717

analogous

#17939F #174F9F #23179F

triadic

#174F9F #9F174F #4F9F17

tetradic

#174F9F #9F1793 #9F6717 #179F23

square

#174F9F #9F1793 #9F6717 #179F23

split-complementary

#174F9F #9F2317 #939F17

monochromatic

#081A34 #0F346A #174F9F #1F6AD4 #4B8BE5

Accessibility & contrast

On white

7.91

#174F9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#174F9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #174F9F

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##174F9F	#FFFFFF	#000000	##FFFFFF
##174F9F	1.00	7.91	2.66	7.91
#FFFFFF	7.91	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D58A2

Deuteranopia (green-blind)

#004C9D

Tritanopia (blue-blind)

#00626F

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #174f9f;
/* rgb */ color: rgb(23, 79, 159);
/* oklch */ color: oklch(44.0% 0.142 258.4);

Tailwind

colors: {
  custom: {
    50: '#6e7fbc',
    500: '#174f9f',
    950: '#000000',
  },
}

SCSS

$custom: #174f9f;
$custom-light: #6e7fbc;
$custom-dark: #000000;

JSON

{
  "hex": "#174f9f",
  "rgb": {
    "r": 23,
    "g": 79,
    "b": 159
  },
  "hsl": {
    "h": 215.294,
    "s": 74.725,
    "l": 35.686
  },
  "oklch": {
    "l": 0.43996,
    "c": 0.14225,
    "h": 258.4
  },
  "luminance": 0.08277
}

Semantic roles & 50–950 ramp

primary

#174F9F

secondary

#C7944B

accent

#A436F1

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A12

muted

#7B7C81

Preview Lab

Preview with #174F9F

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

Preview Lab → · Contrast checker → · Palette generator →