#172E7E#172E7E

#172E7E is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.0% C 0.138 H 266.4°. Best body text is #FFFFFF at 12.15:1 contrast (WCAG AA passes).

Color values

HEX	#172E7E
RGB	rgb(23, 46, 126)
HSL	hsl(227, 69%, 29%)
HSV	hsv(227, 82%, 49%)
CMYK	cmyk(81.7%, 63.5%, 0%, 50.6%)
CIE-LAB	lab(22.45, 22.79, -47.72)
CIE-LCH	lch(22.45, 52.88, 295.53°)
OKLab	oklab(34.01% -0.0086 -0.138)
OKLCH	oklch(34.01% 0.138 266.4)
XYZ	xyz(5.0949, 3.6419, 20.1691)
Luminance	0.0364 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172E7E #7E6717

analogous

#17627E #172E7E #34177E

triadic

#172E7E #7E172E #2E7E17

tetradic

#172E7E #7E1762 #7E6717 #177E34

square

#172E7E #7E1762 #7E6717 #177E34

split-complementary

#172E7E #7E3417 #627E17

monochromatic

#05091A #0E1B4A #172E7E #2041B2 #355ADA

Accessibility & contrast

On white

12.15

#172E7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#172E7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172E7E

12.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172E7E	#FFFFFF	#000000	##FFFFFF
##172E7E	1.00	12.15	1.73	12.15
#FFFFFF	12.15	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B81

Deuteranopia (green-blind)

#00317C

Tritanopia (blue-blind)

#004351

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #172e7e;
/* rgb */ color: rgb(23, 46, 126);
/* oklch */ color: oklch(34.0% 0.138 266.4);

Tailwind

colors: {
  custom: {
    50: '#6766a4',
    500: '#172e7e',
    950: '#000000',
  },
}

SCSS

$custom: #172e7e;
$custom-light: #6766a4;
$custom-dark: #000000;

JSON

{
  "hex": "#172e7e",
  "rgb": {
    "r": 23,
    "g": 46,
    "b": 126
  },
  "hsl": {
    "h": 226.602,
    "s": 69.128,
    "l": 29.216
  },
  "oklch": {
    "l": 0.34013,
    "c": 0.13826,
    "h": 266.4
  },
  "luminance": 0.03643
}

Semantic roles & 50–950 ramp

primary

#172E7E

secondary

#B3993E

accent

#C53CEC

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07050F

muted

#7A7A7F

Preview Lab

Preview with #172E7E

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

Preview Lab → · Contrast checker → · Palette generator →