#174E9F#174E9F

#174E9F is a dark, vivid blue. Relative luminance 0.081; OKLCH L 43.8% C 0.143 H 258.8°. Best body text is #FFFFFF at 7.99:1 contrast (WCAG AA passes).

Color values

HEX	#174E9F
RGB	rgb(23, 78, 159)
HSL	hsl(216, 75%, 36%)
HSV	hsv(216, 86%, 62%)
CMYK	cmyk(85.5%, 50.9%, 0%, 37.6%)
CIE-LAB	lab(34.26, 14.05, -48.86)
CIE-LCH	lch(34.26, 50.84, 286.04°)
OKLab	oklab(43.77% -0.0279 -0.1408)
OKLCH	oklch(43.77% 0.144 258.8)
XYZ	xyz(9.3334, 8.1330, 33.8721)
Luminance	0.0813 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#174E9F #9F6817

analogous

#17929F #174E9F #24179F

triadic

#174E9F #9F174E #4E9F17

tetradic

#174E9F #9F1792 #9F6817 #179F24

square

#174E9F #9F1792 #9F6817 #179F24

split-complementary

#174E9F #9F2417 #929F17

monochromatic

#081A34 #0F346A #174E9F #1F68D4 #4B8AE5

Accessibility & contrast

On white

7.99

#174E9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#174E9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #174E9F

7.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##174E9F	#FFFFFF	#000000	##FFFFFF
##174E9F	1.00	7.99	2.63	7.99
#FFFFFF	7.99	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A57A2

Deuteranopia (green-blind)

#004B9D

Tritanopia (blue-blind)

#00626F

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #174e9f;
/* rgb */ color: rgb(23, 78, 159);
/* oklch */ color: oklch(43.8% 0.143 258.8);

Tailwind

colors: {
  custom: {
    50: '#6e7ebc',
    500: '#174e9f',
    950: '#000000',
  },
}

SCSS

$custom: #174e9f;
$custom-light: #6e7ebc;
$custom-dark: #000000;

JSON

{
  "hex": "#174e9f",
  "rgb": {
    "r": 23,
    "g": 78,
    "b": 159
  },
  "hsl": {
    "h": 215.735,
    "s": 74.725,
    "l": 35.686
  },
  "oklch": {
    "l": 0.43771,
    "c": 0.1435,
    "h": 258.8
  },
  "luminance": 0.08134
}

Semantic roles & 50–950 ramp

primary

#174E9F

secondary

#C7954B

accent

#A636F1

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080912

muted

#7B7B81

Preview Lab

Preview with #174E9F

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

Preview Lab → · Contrast checker → · Palette generator →