#172978#172978

#172978 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.4% C 0.136 H 267.8°. Best body text is #FFFFFF at 12.92:1 contrast (WCAG AA passes).

Color values

HEX	#172978
RGB	rgb(23, 41, 120)
HSL	hsl(229, 68%, 28%)
HSV	hsv(229, 81%, 47%)
CMYK	cmyk(80.8%, 65.8%, 0%, 52.9%)
CIE-LAB	lab(20.53, 23.89, -47.04)
CIE-LCH	lch(20.53, 52.76, 296.92°)
OKLab	oklab(32.42% -0.0053 -0.1361)
OKLCH	oklch(32.42% 0.136 267.8)
XYZ	xyz(4.5353, 3.1236, 18.1295)
Luminance	0.0312 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172978 #786617

analogous

#175978 #172978 #351778

triadic

#172978 #781729 #297817

tetradic

#172978 #781759 #786617 #177835

square

#172978 #781759 #786617 #177835

split-complementary

#172978 #783517 #597817

monochromatic

#05091A #0D1745 #172978 #213BAB #3251D8

Accessibility & contrast

On white

12.92

#172978 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#172978 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172978

12.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172978	#FFFFFF	#000000	##FFFFFF
##172978	1.00	12.92	1.62	12.92
#FFFFFF	12.92	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00367B

Deuteranopia (green-blind)

#002D77

Tritanopia (blue-blind)

#003E4C

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #172978;
/* rgb */ color: rgb(23, 41, 120);
/* oklch */ color: oklch(32.4% 0.136 267.8);

Tailwind

colors: {
  custom: {
    50: '#6662a0',
    500: '#172978',
    950: '#000000',
  },
}

SCSS

$custom: #172978;
$custom-light: #6662a0;
$custom-dark: #000000;

JSON

{
  "hex": "#172978",
  "rgb": {
    "r": 23,
    "g": 41,
    "b": 120
  },
  "hsl": {
    "h": 228.866,
    "s": 67.832,
    "l": 28.039
  },
  "oklch": {
    "l": 0.32421,
    "c": 0.13618,
    "h": 267.8
  },
  "luminance": 0.03124
}

Semantic roles & 50–950 ramp

primary

#172978

secondary

#AD983E

accent

#CA3DEB

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#07050F

muted

#7A797E

Preview Lab

Preview with #172978

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

Preview Lab → · Contrast checker → · Palette generator →