#172E75#172E75

#172E75 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.2% C 0.125 H 266.0°. Best body text is #FFFFFF at 12.47:1 contrast (WCAG AA passes).

Color values

HEX	#172E75
RGB	rgb(23, 46, 117)
HSL	hsl(225, 67%, 27%)
HSV	hsv(225, 80%, 46%)
CMYK	cmyk(80.3%, 60.7%, 0%, 54.1%)
CIE-LAB	lab(21.65, 19.12, -43.29)
CIE-LCH	lch(21.65, 47.33, 293.83°)
OKLab	oklab(33.17% -0.0088 -0.125)
OKLCH	oklch(33.17% 0.125 266)
XYZ	xyz(4.5401, 3.4200, 17.2470)
Luminance	0.0342 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172E75 #755E17

analogous

#175D75 #172E75 #2F1775

triadic

#172E75 #75172E #2E7517

tetradic

#172E75 #75175D #755E17 #17752F

square

#172E75 #75175D #755E17 #17752F

split-complementary

#172E75 #752F17 #5D7517

monochromatic

#050A1A #0D1A42 #172E75 #2142A8 #3059D6

Accessibility & contrast

On white

12.47

#172E75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#172E75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172E75

12.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172E75	#FFFFFF	#000000	##FFFFFF
##172E75	1.00	12.47	1.68	12.47
#FFFFFF	12.47	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003877

Deuteranopia (green-blind)

#003074

Tritanopia (blue-blind)

#00404C

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #172e75;
/* rgb */ color: rgb(23, 46, 117);
/* oklch */ color: oklch(33.2% 0.125 266.0);

Tailwind

colors: {
  custom: {
    50: '#64669d',
    500: '#172e75',
    950: '#000000',
  },
}

SCSS

$custom: #172e75;
$custom-light: #64669d;
$custom-dark: #000000;

JSON

{
  "hex": "#172e75",
  "rgb": {
    "r": 23,
    "g": 46,
    "b": 117
  },
  "hsl": {
    "h": 225.319,
    "s": 67.143,
    "l": 27.451
  },
  "oklch": {
    "l": 0.3317,
    "c": 0.12533,
    "h": 266
  },
  "luminance": 0.03421
}

Semantic roles & 50–950 ramp

primary

#172E75

secondary

#AA903D

accent

#C03EEA

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06050E

muted

#7A7A7E

Preview Lab

Preview with #172E75

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

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