#172D76#172D76

#172D76 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.1% C 0.128 H 266.4°. Best body text is #FFFFFF at 12.55:1 contrast (WCAG AA passes).

Color values

HEX	#172D76
RGB	rgb(23, 45, 118)
HSL	hsl(226, 67%, 28%)
HSV	hsv(226, 81%, 46%)
CMYK	cmyk(80.5%, 61.9%, 0%, 53.7%)
CIE-LAB	lab(21.46, 20.24, -44.26)
CIE-LCH	lch(21.46, 48.67, 294.58°)
OKLab	oklab(33.05% -0.008 -0.1279)
OKLCH	oklch(33.05% 0.128 266.4)
XYZ	xyz(4.5606, 3.3664, 17.5455)
Luminance	0.0337 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172D76 #766017

analogous

#175D76 #172D76 #301776

triadic

#172D76 #76172D #2D7617

tetradic

#172D76 #76175D #766017 #177630

square

#172D76 #76175D #766017 #177630

split-complementary

#172D76 #763017 #5D7617

monochromatic

#050A1A #0D1943 #172D76 #2141A9 #3157D7

Accessibility & contrast

On white

12.55

#172D76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#172D76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172D76

12.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172D76	#FFFFFF	#000000	##FFFFFF
##172D76	1.00	12.55	1.67	12.55
#FFFFFF	12.55	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003878

Deuteranopia (green-blind)

#002F75

Tritanopia (blue-blind)

#00404C

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #172d76;
/* rgb */ color: rgb(23, 45, 118);
/* oklch */ color: oklch(33.1% 0.128 266.4);

Tailwind

colors: {
  custom: {
    50: '#65659e',
    500: '#172d76',
    950: '#000000',
  },
}

SCSS

$custom: #172d76;
$custom-light: #65659e;
$custom-dark: #000000;

JSON

{
  "hex": "#172d76",
  "rgb": {
    "r": 23,
    "g": 45,
    "b": 118
  },
  "hsl": {
    "h": 226.105,
    "s": 67.376,
    "l": 27.647
  },
  "oklch": {
    "l": 0.3305,
    "c": 0.12811,
    "h": 266.4
  },
  "luminance": 0.03367
}

Semantic roles & 50–950 ramp

primary

#172D76

secondary

#AB923E

accent

#C23EEA

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06050E

muted

#7A7A7E

Preview Lab

Preview with #172D76

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

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