#172A60#172A60

#172A60 is a dark, moderate blue. Relative luminance 0.027; OKLCH L 30.4% C 0.099 H 266.0°. Best body text is #FFFFFF at 13.67:1 contrast (WCAG AA passes).

Color values

HEX	#172A60
RGB	rgb(23, 42, 96)
HSL	hsl(224, 61%, 23%)
HSV	hsv(224, 76%, 38%)
CMYK	cmyk(76%, 56.3%, 0%, 62.4%)
CIE-LAB	lab(18.72, 13.31, -34.42)
CIE-LCH	lch(18.72, 36.90, 291.14°)
OKLab	oklab(30.42% -0.0069 -0.099)
OKLCH	oklch(30.42% 0.099 266)
XYZ	xyz(3.2919, 2.6823, 11.4083)
Luminance	0.0268 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172A60 #604D17

analogous

#174E60 #172A60 #281760

triadic

#172A60 #60172A #2A6017

tetradic

#172A60 #60174E #604D17 #176028

square

#172A60 #60174E #604D17 #176028

split-complementary

#172A60 #602817 #4E6017

monochromatic

#060B19 #0B142F #172A60 #234091 #2F55C3

Accessibility & contrast

On white

13.67

#172A60 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#172A60 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172A60

13.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172A60	#FFFFFF	#000000	##FFFFFF
##172A60	1.00	13.67	1.54	13.67
#FFFFFF	13.67	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#063162

Deuteranopia (green-blind)

#002A5F

Tritanopia (blue-blind)

#003740

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #172a60;
/* rgb */ color: rgb(23, 42, 96);
/* oklch */ color: oklch(30.4% 0.099 266.0);

Tailwind

colors: {
  custom: {
    50: '#5f638e',
    500: '#172a60',
    950: '#000000',
  },
}

SCSS

$custom: #172a60;
$custom-light: #5f638e;
$custom-dark: #000000;

JSON

{
  "hex": "#172a60",
  "rgb": {
    "r": 23,
    "g": 42,
    "b": 96
  },
  "hsl": {
    "h": 224.384,
    "s": 61.345,
    "l": 23.333
  },
  "oklch": {
    "l": 0.30415,
    "c": 0.09923,
    "h": 266
  },
  "luminance": 0.02683
}

Semantic roles & 50–950 ramp

primary

#172A60

secondary

#977F3C

accent

#BB43E4

background

#F5F5F8

surface

#EAEAF0

border

#C6C6CB

text

#05050C

muted

#79797D

Preview Lab

Preview with #172A60

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

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