#174C9E#174C9E

#174C9E is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.2% C 0.145 H 259.4°. Best body text is #FFFFFF at 8.19:1 contrast (WCAG AA passes).

Color values

HEX	#174C9E
RGB	rgb(23, 76, 158)
HSL	hsl(216, 75%, 35%)
HSV	hsv(216, 85%, 62%)
CMYK	cmyk(85.4%, 51.9%, 0%, 38%)
CIE-LAB	lab(33.60, 15.00, -49.32)
CIE-LCH	lch(33.60, 51.55, 286.91°)
OKLab	oklab(43.25% -0.0266 -0.1421)
OKLCH	oklch(43.25% 0.145 259.4)
XYZ	xyz(9.1071, 7.8185, 33.3703)
Luminance	0.0782 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#174C9E #9E6917

analogous

#17909E #174C9E #25179E

triadic

#174C9E #9E174C #4C9E17

tetradic

#174C9E #9E1790 #9E6917 #179E25

square

#174C9E #9E1790 #9E6917 #179E25

split-complementary

#174C9E #9E2517 #909E17

monochromatic

#071933 #0F3269 #174C9E #1F66D3 #4B87E5

Accessibility & contrast

On white

8.19

#174C9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#174C9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #174C9E

8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##174C9E	#FFFFFF	#000000	##FFFFFF
##174C9E	1.00	8.19	2.56	8.19
#FFFFFF	8.19	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1555A1

Deuteranopia (green-blind)

#00499C

Tritanopia (blue-blind)

#00606D

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #174c9e;
/* rgb */ color: rgb(23, 76, 158);
/* oklch */ color: oklch(43.2% 0.145 259.4);

Tailwind

colors: {
  custom: {
    50: '#6e7dbb',
    500: '#174c9e',
    950: '#000000',
  },
}

SCSS

$custom: #174c9e;
$custom-light: #6e7dbb;
$custom-dark: #000000;

JSON

{
  "hex": "#174c9e",
  "rgb": {
    "r": 23,
    "g": 76,
    "b": 158
  },
  "hsl": {
    "h": 216.444,
    "s": 74.586,
    "l": 35.49
  },
  "oklch": {
    "l": 0.43246,
    "c": 0.14462,
    "h": 259.4
  },
  "luminance": 0.0782
}

Semantic roles & 50–950 ramp

primary

#174C9E

secondary

#C6964A

accent

#A837F1

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080912

muted

#7B7B81

Preview Lab

Preview with #174C9E

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

Preview Lab → · Contrast checker → · Palette generator →