#172E7D#172E7D

#172E7D is a dark, vivid blue. Relative luminance 0.036; OKLCH L 33.9% C 0.137 H 266.4°. Best body text is #FFFFFF at 12.19:1 contrast (WCAG AA passes).

Color values

HEX	#172E7D
RGB	rgb(23, 46, 125)
HSL	hsl(226, 69%, 29%)
HSV	hsv(226, 82%, 49%)
CMYK	cmyk(81.6%, 63.2%, 0%, 51%)
CIE-LAB	lab(22.36, 22.39, -47.23)
CIE-LCH	lch(22.36, 52.27, 295.36°)
OKLab	oklab(33.92% -0.0086 -0.1366)
OKLCH	oklch(33.92% 0.137 266.4)
XYZ	xyz(5.0307, 3.6162, 19.8309)
Luminance	0.0362 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172E7D #7D6617

analogous

#17617D #172E7D #33177D

triadic

#172E7D #7D172E #2E7D17

tetradic

#172E7D #7D1761 #7D6617 #177D33

square

#172E7D #7D1761 #7D6617 #177D33

split-complementary

#172E7D #7D3317 #617D17

monochromatic

#050A1A #0D1B49 #172E7D #2141B1 #355ADA

Accessibility & contrast

On white

12.19

#172E7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#172E7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172E7D

12.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172E7D	#FFFFFF	#000000	##FFFFFF
##172E7D	1.00	12.19	1.72	12.19
#FFFFFF	12.19	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A80

Deuteranopia (green-blind)

#00317B

Tritanopia (blue-blind)

#004251

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #172e7d;
/* rgb */ color: rgb(23, 46, 125);
/* oklch */ color: oklch(33.9% 0.137 266.4);

Tailwind

colors: {
  custom: {
    50: '#6766a3',
    500: '#172e7d',
    950: '#000000',
  },
}

SCSS

$custom: #172e7d;
$custom-light: #6766a3;
$custom-dark: #000000;

JSON

{
  "hex": "#172e7d",
  "rgb": {
    "r": 23,
    "g": 46,
    "b": 125
  },
  "hsl": {
    "h": 226.471,
    "s": 68.919,
    "l": 29.02
  },
  "oklch": {
    "l": 0.33918,
    "c": 0.13684,
    "h": 266.4
  },
  "luminance": 0.03617
}

Semantic roles & 50–950 ramp

primary

#172E7D

secondary

#B2983E

accent

#C43CEC

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07050F

muted

#7A7A7F

Preview Lab

Preview with #172E7D

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

Preview Lab → · Contrast checker → · Palette generator →