#172F76#172F76

#172F76 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 33.5% C 0.125 H 265.7°. Best body text is #FFFFFF at 12.32:1 contrast (WCAG AA passes).

Color values

HEX	#172F76
RGB	rgb(23, 47, 118)
HSL	hsl(225, 67%, 28%)
HSV	hsv(225, 81%, 46%)
CMYK	cmyk(80.5%, 60.2%, 0%, 53.7%)
CIE-LAB	lab(22.03, 18.82, -43.33)
CIE-LCH	lch(22.03, 47.23, 293.47°)
OKLab	oklab(33.48% -0.0095 -0.1251)
OKLCH	oklch(33.48% 0.125 265.7)
XYZ	xyz(4.6387, 3.5227, 17.5715)
Luminance	0.0352 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172F76 #765E17

analogous

#175F76 #172F76 #2E1776

triadic

#172F76 #76172F #2F7617

tetradic

#172F76 #76175F #765E17 #17762E

square

#172F76 #76175F #765E17 #17762E

split-complementary

#172F76 #762E17 #5F7617

monochromatic

#050A1A #0D1B43 #172F76 #2143A9 #315BD7

Accessibility & contrast

On white

12.32

#172F76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#172F76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172F76

12.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172F76	#FFFFFF	#000000	##FFFFFF
##172F76	1.00	12.32	1.70	12.32
#FFFFFF	12.32	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003978

Deuteranopia (green-blind)

#003075

Tritanopia (blue-blind)

#00414D

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #172f76;
/* rgb */ color: rgb(23, 47, 118);
/* oklch */ color: oklch(33.5% 0.125 265.7);

Tailwind

colors: {
  custom: {
    50: '#65679e',
    500: '#172f76',
    950: '#000000',
  },
}

SCSS

$custom: #172f76;
$custom-light: #65679e;
$custom-dark: #000000;

JSON

{
  "hex": "#172f76",
  "rgb": {
    "r": 23,
    "g": 47,
    "b": 118
  },
  "hsl": {
    "h": 224.842,
    "s": 67.376,
    "l": 27.647
  },
  "oklch": {
    "l": 0.33477,
    "c": 0.12546,
    "h": 265.7
  },
  "luminance": 0.03523
}

Semantic roles & 50–950 ramp

primary

#172F76

secondary

#AB903E

accent

#BF3EEA

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #172F76

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

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