#172E52#172E52

#172E52 is a dark, moderate blue. Relative luminance 0.027; OKLCH L 30.3% C 0.072 H 259.0°. Best body text is #FFFFFF at 13.56:1 contrast (WCAG AA passes).

Color values

HEX	#172E52
RGB	rgb(23, 46, 82)
HSL	hsl(217, 56%, 21%)
HSV	hsv(217, 72%, 32%)
CMYK	cmyk(72%, 43.9%, 0%, 67.8%)
CIE-LAB	lab(18.99, 4.56, -24.67)
CIE-LCH	lch(18.99, 25.09, 280.46°)
OKLab	oklab(30.3% -0.0136 -0.0703)
OKLCH	oklch(30.3% 0.072 259)
XYZ	xyz(2.8528, 2.7451, 8.3605)
Luminance	0.0274 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172E52 #523B17

analogous

#174B52 #172E52 #1D1752

triadic

#172E52 #52172E #2E5217

tetradic

#172E52 #52174B #523B17 #17521D

square

#172E52 #52174B #523B17 #17521D

split-complementary

#172E52 #521D17 #4B5217

monochromatic

#070D18 #0A1322 #172E52 #244982 #3264B2

Accessibility & contrast

On white

13.56

#172E52 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#172E52 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172E52

13.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172E52	#FFFFFF	#000000	##FFFFFF
##172E52	1.00	13.56	1.55	13.56
#FFFFFF	13.56	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E3153

Deuteranopia (green-blind)

#152C51

Tritanopia (blue-blind)

#00363C

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #172e52;
/* rgb */ color: rgb(23, 46, 82);
/* oklch */ color: oklch(30.3% 0.072 259.0);

Tailwind

colors: {
  custom: {
    50: '#5c6683',
    500: '#172e52',
    950: '#000000',
  },
}

SCSS

$custom: #172e52;
$custom-light: #5c6683;
$custom-dark: #000000;

JSON

{
  "hex": "#172e52",
  "rgb": {
    "r": 23,
    "g": 46,
    "b": 82
  },
  "hsl": {
    "h": 216.61,
    "s": 56.19,
    "l": 20.588
  },
  "oklch": {
    "l": 0.30298,
    "c": 0.07158,
    "h": 259
  },
  "luminance": 0.02745
}

Semantic roles & 50–950 ramp

primary

#172E52

secondary

#896B3C

accent

#A548DF

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04050A

muted

#797A7C

Preview Lab

Preview with #172E52

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

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