#172F70#172F70

#172F70 is a dark, moderate blue. Relative luminance 0.034; OKLCH L 32.9% C 0.117 H 265.2°. Best body text is #FFFFFF at 12.52:1 contrast (WCAG AA passes).

Color values

HEX	#172F70
RGB	rgb(23, 47, 112)
HSL	hsl(224, 66%, 26%)
HSV	hsv(224, 79%, 44%)
CMYK	cmyk(79.5%, 58%, 0%, 56.1%)
CIE-LAB	lab(21.52, 16.34, -40.30)
CIE-LCH	lch(21.52, 43.48, 292.07°)
OKLab	oklab(32.94% -0.0098 -0.1162)
OKLCH	oklch(32.94% 0.117 265.2)
XYZ	xyz(4.2935, 3.3846, 15.7531)
Luminance	0.0338 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172F70 #705817

analogous

#175C70 #172F70 #2C1770

triadic

#172F70 #70172F #2F7017

tetradic

#172F70 #70175C #705817 #17702C

square

#172F70 #70175C #705817 #17702C

split-complementary

#172F70 #702C17 #5C7017

monochromatic

#050B19 #0D1A3D #172F70 #2144A3 #2D5AD4

Accessibility & contrast

On white

12.52

#172F70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#172F70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172F70

12.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172F70	#FFFFFF	#000000	##FFFFFF
##172F70	1.00	12.52	1.68	12.52
#FFFFFF	12.52	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003872

Deuteranopia (green-blind)

#00306F

Tritanopia (blue-blind)

#003F4A

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #172f70;
/* rgb */ color: rgb(23, 47, 112);
/* oklch */ color: oklch(32.9% 0.117 265.2);

Tailwind

colors: {
  custom: {
    50: '#63679a',
    500: '#172f70',
    950: '#000000',
  },
}

SCSS

$custom: #172f70;
$custom-light: #63679a;
$custom-dark: #000000;

JSON

{
  "hex": "#172f70",
  "rgb": {
    "r": 23,
    "g": 47,
    "b": 112
  },
  "hsl": {
    "h": 223.82,
    "s": 65.926,
    "l": 26.471
  },
  "oklch": {
    "l": 0.3294,
    "c": 0.11662,
    "h": 265.2
  },
  "luminance": 0.03385
}

Semantic roles & 50–950 ramp

primary

#172F70

secondary

#A68A3D

accent

#BB3FE9

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #172F70

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

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