#174CA5#174CA5

#174CA5 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 43.8% C 0.154 H 260.4°. Best body text is #FFFFFF at 8.03:1 contrast (WCAG AA passes).

Color values

HEX	#174CA5
RGB	rgb(23, 76, 165)
HSL	hsl(218, 76%, 37%)
HSV	hsv(218, 86%, 65%)
CMYK	cmyk(86.1%, 53.9%, 0%, 35.3%)
CIE-LAB	lab(34.12, 17.84, -52.69)
CIE-LCH	lch(34.12, 55.63, 288.70°)
OKLab	oklab(43.81% -0.0257 -0.152)
OKLCH	oklch(43.81% 0.154 260.4)
XYZ	xyz(9.7268, 8.0664, 36.6343)
Luminance	0.0807 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#174CA5 #A57017

analogous

#1793A5 #174CA5 #2917A5

triadic

#174CA5 #A5174C #4CA517

tetradic

#174CA5 #A51793 #A57017 #17A529

square

#174CA5 #A51793 #A57017 #17A529

split-complementary

#174CA5 #A52917 #93A517

monochromatic

#081B3A #10336F #174CA5 #1E65DB #5088E7

Accessibility & contrast

On white

8.03

#174CA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#174CA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #174CA5

8.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##174CA5	#FFFFFF	#000000	##FFFFFF
##174CA5	1.00	8.03	2.61	8.03
#FFFFFF	8.03	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0157A8

Deuteranopia (green-blind)

#004AA3

Tritanopia (blue-blind)

#006271

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #174ca5;
/* rgb */ color: rgb(23, 76, 165);
/* oklch */ color: oklch(43.8% 0.154 260.4);

Tailwind

colors: {
  custom: {
    50: '#6f7dc0',
    500: '#174ca5',
    950: '#000000',
  },
}

SCSS

$custom: #174ca5;
$custom-light: #6f7dc0;
$custom-dark: #000000;

JSON

{
  "hex": "#174ca5",
  "rgb": {
    "r": 23,
    "g": 76,
    "b": 165
  },
  "hsl": {
    "h": 217.606,
    "s": 75.532,
    "l": 36.863
  },
  "oklch": {
    "l": 0.43806,
    "c": 0.15421,
    "h": 260.4
  },
  "luminance": 0.08068
}

Semantic roles & 50–950 ramp

primary

#174CA5

secondary

#C99B4F

accent

#AC36F2

background

#F7F7FB

surface

#EDEEF7

border

#C8C9D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #174CA5

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

Preview Lab → · Contrast checker → · Palette generator →