#172E73#172E73

#172E73 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.0% C 0.122 H 265.8°. Best body text is #FFFFFF at 12.54:1 contrast (WCAG AA passes).

Color values

HEX	#172E73
RGB	rgb(23, 46, 115)
HSL	hsl(225, 67%, 27%)
HSV	hsv(225, 80%, 45%)
CMYK	cmyk(80%, 60%, 0%, 54.9%)
CIE-LAB	lab(21.48, 18.30, -42.29)
CIE-LCH	lch(21.48, 46.08, 293.39°)
OKLab	oklab(32.99% -0.0089 -0.1221)
OKLCH	oklch(32.99% 0.122 265.8)
XYZ	xyz(4.4238, 3.3735, 16.6343)
Luminance	0.0337 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172E73 #735C17

analogous

#175C73 #172E73 #2E1773

triadic

#172E73 #73172E #2E7317

tetradic

#172E73 #73175C #735C17 #17732E

square

#172E73 #73175C #735C17 #17732E

split-complementary

#172E73 #732E17 #5C7317

monochromatic

#050A1A #0D1A40 #172E73 #2142A6 #2F59D5

Accessibility & contrast

On white

12.54

#172E73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#172E73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172E73

12.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172E73	#FFFFFF	#000000	##FFFFFF
##172E73	1.00	12.54	1.67	12.54
#FFFFFF	12.54	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003875

Deuteranopia (green-blind)

#002F72

Tritanopia (blue-blind)

#003F4B

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #172e73;
/* rgb */ color: rgb(23, 46, 115);
/* oklch */ color: oklch(33.0% 0.122 265.8);

Tailwind

colors: {
  custom: {
    50: '#64669c',
    500: '#172e73',
    950: '#000000',
  },
}

SCSS

$custom: #172e73;
$custom-light: #64669c;
$custom-dark: #000000;

JSON

{
  "hex": "#172e73",
  "rgb": {
    "r": 23,
    "g": 46,
    "b": 115
  },
  "hsl": {
    "h": 225,
    "s": 66.667,
    "l": 27.059
  },
  "oklch": {
    "l": 0.32988,
    "c": 0.1224,
    "h": 265.8
  },
  "luminance": 0.03374
}

Semantic roles & 50–950 ramp

primary

#172E73

secondary

#A98E3D

accent

#BF3EEA

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06050E

muted

#7A7A7E

Preview Lab

Preview with #172E73

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

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