#174E9E#174E9E

#174E9E is a dark, vivid blue. Relative luminance 0.081; OKLCH L 43.7% C 0.142 H 258.6°. Best body text is #FFFFFF at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#174E9E
RGB	rgb(23, 78, 158)
HSL	hsl(216, 75%, 35%)
HSV	hsv(216, 85%, 62%)
CMYK	cmyk(85.4%, 50.6%, 0%, 38%)
CIE-LAB	lab(34.19, 13.64, -48.38)
CIE-LCH	lch(34.19, 50.26, 285.75°)
OKLab	oklab(43.69% -0.028 -0.1393)
OKLCH	oklch(43.69% 0.142 258.6)
XYZ	xyz(9.2470, 8.0984, 33.4169)
Luminance	0.0810 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#174E9E #9E6717

analogous

#17919E #174E9E #24179E

triadic

#174E9E #9E174E #4E9E17

tetradic

#174E9E #9E1791 #9E6717 #179E24

square

#174E9E #9E1791 #9E6717 #179E24

split-complementary

#174E9E #9E2417 #919E17

monochromatic

#071933 #0F3469 #174E9E #1F68D3 #4B89E5

Accessibility & contrast

On white

8.02

#174E9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#174E9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #174E9E

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##174E9E	#FFFFFF	#000000	##FFFFFF
##174E9E	1.00	8.02	2.62	8.02
#FFFFFF	8.02	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C57A1

Deuteranopia (green-blind)

#004B9C

Tritanopia (blue-blind)

#00616E

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #174e9e;
/* rgb */ color: rgb(23, 78, 158);
/* oklch */ color: oklch(43.7% 0.142 258.6);

Tailwind

colors: {
  custom: {
    50: '#6d7ebb',
    500: '#174e9e',
    950: '#000000',
  },
}

SCSS

$custom: #174e9e;
$custom-light: #6d7ebb;
$custom-dark: #000000;

JSON

{
  "hex": "#174e9e",
  "rgb": {
    "r": 23,
    "g": 78,
    "b": 158
  },
  "hsl": {
    "h": 215.556,
    "s": 74.586,
    "l": 35.49
  },
  "oklch": {
    "l": 0.43694,
    "c": 0.14212,
    "h": 258.6
  },
  "luminance": 0.081
}

Semantic roles & 50–950 ramp

primary

#174E9E

secondary

#C6944A

accent

#A537F1

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080912

muted

#7B7B81

Preview Lab

Preview with #174E9E

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

Preview Lab → · Contrast checker → · Palette generator →