#174D9E#174D9E

#174D9E is a dark, vivid blue. Relative luminance 0.080; OKLCH L 43.5% C 0.143 H 259.0°. Best body text is #FFFFFF at 8.10:1 contrast (WCAG AA passes).

Color values

HEX	#174D9E
RGB	rgb(23, 77, 158)
HSL	hsl(216, 75%, 35%)
HSV	hsv(216, 85%, 62%)
CMYK	cmyk(85.4%, 51.3%, 0%, 38%)
CIE-LAB	lab(33.89, 14.32, -48.85)
CIE-LCH	lch(33.89, 50.91, 286.33°)
OKLab	oklab(43.47% -0.0273 -0.1407)
OKLCH	oklch(43.47% 0.143 259)
XYZ	xyz(9.1765, 7.9574, 33.3934)
Luminance	0.0796 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#174D9E #9E6817

analogous

#17909E #174D9E #24179E

triadic

#174D9E #9E174D #4D9E17

tetradic

#174D9E #9E1790 #9E6817 #179E24

square

#174D9E #9E1790 #9E6817 #179E24

split-complementary

#174D9E #9E2417 #909E17

monochromatic

#071933 #0F3369 #174D9E #1F67D3 #4B88E5

Accessibility & contrast

On white

8.10

#174D9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#174D9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #174D9E

8.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##174D9E	#FFFFFF	#000000	##FFFFFF
##174D9E	1.00	8.10	2.59	8.10
#FFFFFF	8.10	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1856A1

Deuteranopia (green-blind)

#004A9C

Tritanopia (blue-blind)

#00616E

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #174d9e;
/* rgb */ color: rgb(23, 77, 158);
/* oklch */ color: oklch(43.5% 0.143 259.0);

Tailwind

colors: {
  custom: {
    50: '#6d7ebb',
    500: '#174d9e',
    950: '#000000',
  },
}

SCSS

$custom: #174d9e;
$custom-light: #6d7ebb;
$custom-dark: #000000;

JSON

{
  "hex": "#174d9e",
  "rgb": {
    "r": 23,
    "g": 77,
    "b": 158
  },
  "hsl": {
    "h": 216,
    "s": 74.586,
    "l": 35.49
  },
  "oklch": {
    "l": 0.43469,
    "c": 0.14337,
    "h": 259
  },
  "luminance": 0.07959
}

Semantic roles & 50–950 ramp

primary

#174D9E

secondary

#C6954A

accent

#A737F1

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080912

muted

#7B7B81

Preview Lab

Preview with #174D9E

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

Preview Lab → · Contrast checker → · Palette generator →