#172870#172870

#172870 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 31.4% C 0.126 H 268.0°. Best body text is #FFFFFF at 13.34:1 contrast (WCAG AA passes).

Color values

HEX	#172870
RGB	rgb(23, 40, 112)
HSL	hsl(229, 66%, 26%)
HSV	hsv(229, 79%, 44%)
CMYK	cmyk(79.5%, 64.3%, 0%, 56.1%)
CIE-LAB	lab(19.51, 21.36, -43.58)
CIE-LCH	lch(19.51, 48.53, 296.12°)
OKLab	oklab(31.44% -0.0045 -0.1259)
OKLCH	oklch(31.44% 0.126 268)
XYZ	xyz(4.0358, 2.8692, 15.6672)
Luminance	0.0287 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172870 #705F17

analogous

#175570 #172870 #331770

triadic

#172870 #701728 #287017

tetradic

#172870 #701755 #705F17 #177033

square

#172870 #701755 #705F17 #177033

split-complementary

#172870 #703317 #557017

monochromatic

#050919 #0D163D #172870 #213AA3 #2D4DD4

Accessibility & contrast

On white

13.34

#172870 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#172870 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172870

13.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172870	#FFFFFF	#000000	##FFFFFF
##172870	1.00	13.34	1.57	13.34
#FFFFFF	13.34	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003472

Deuteranopia (green-blind)

#002B6F

Tritanopia (blue-blind)

#003A48

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #172870;
/* rgb */ color: rgb(23, 40, 112);
/* oklch */ color: oklch(31.4% 0.126 268.0);

Tailwind

colors: {
  custom: {
    50: '#64619a',
    500: '#172870',
    950: '#000000',
  },
}

SCSS

$custom: #172870;
$custom-light: #64619a;
$custom-dark: #000000;

JSON

{
  "hex": "#172870",
  "rgb": {
    "r": 23,
    "g": 40,
    "b": 112
  },
  "hsl": {
    "h": 228.539,
    "s": 65.926,
    "l": 26.471
  },
  "oklch": {
    "l": 0.31436,
    "c": 0.12601,
    "h": 268
  },
  "luminance": 0.0287
}

Semantic roles & 50–950 ramp

primary

#172870

secondary

#A6923D

accent

#C83FE9

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #172870

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

Preview Lab → · Contrast checker → · Palette generator →