#172E54#172E54

#172E54 is a dark, moderate blue. Relative luminance 0.028; OKLCH L 30.4% C 0.075 H 259.9°. Best body text is #FFFFFF at 13.50:1 contrast (WCAG AA passes).

Color values

HEX	#172E54
RGB	rgb(23, 46, 84)
HSL	hsl(217, 57%, 21%)
HSV	hsv(217, 73%, 33%)
CMYK	cmyk(72.6%, 45.2%, 0%, 67.1%)
CIE-LAB	lab(19.12, 5.38, -25.81)
CIE-LCH	lch(19.12, 26.36, 281.78°)
OKLab	oklab(30.44% -0.0131 -0.0736)
OKLCH	oklch(30.44% 0.075 259.9)
XYZ	xyz(2.9300, 2.7760, 8.7672)
Luminance	0.0278 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172E54 #543D17

analogous

#174C54 #172E54 #1E1754

triadic

#172E54 #54172E #2E5417

tetradic

#172E54 #54174C #543D17 #17541E

square

#172E54 #54174C #543D17 #17541E

split-complementary

#172E54 #541E17 #4C5417

monochromatic

#070D18 #0A1424 #172E54 #244884 #3163B4

Accessibility & contrast

On white

13.50

#172E54 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#172E54 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172E54

13.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172E54	#FFFFFF	#000000	##FFFFFF
##172E54	1.00	13.50	1.56	13.50
#FFFFFF	13.50	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C3155

Deuteranopia (green-blind)

#132C53

Tritanopia (blue-blind)

#00373C

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #172e54;
/* rgb */ color: rgb(23, 46, 84);
/* oklch */ color: oklch(30.4% 0.075 259.9);

Tailwind

colors: {
  custom: {
    50: '#5c6684',
    500: '#172e54',
    950: '#000000',
  },
}

SCSS

$custom: #172e54;
$custom-light: #5c6684;
$custom-dark: #000000;

JSON

{
  "hex": "#172e54",
  "rgb": {
    "r": 23,
    "g": 46,
    "b": 84
  },
  "hsl": {
    "h": 217.377,
    "s": 57.009,
    "l": 20.98
  },
  "oklch": {
    "l": 0.30441,
    "c": 0.07476,
    "h": 259.9
  },
  "luminance": 0.02776
}

Semantic roles & 50–950 ramp

primary

#172E54

secondary

#8B6D3C

accent

#A748E0

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04050B

muted

#797A7C

Preview Lab

Preview with #172E54

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

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