#172881#172881

#172881 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.1% C 0.150 H 268.0°. Best body text is #FFFFFF at 12.67:1 contrast (WCAG AA passes).

Color values

HEX	#172881
RGB	rgb(23, 40, 129)
HSL	hsl(230, 70%, 30%)
HSV	hsv(230, 82%, 51%)
CMYK	cmyk(82.2%, 69%, 0%, 49.4%)
CIE-LAB	lab(21.15, 28.14, -51.75)
CIE-LCH	lch(21.15, 58.90, 298.54°)
OKLab	oklab(33.14% -0.0052 -0.1498)
OKLCH	oklch(33.14% 0.15 268)
XYZ	xyz(5.0732, 3.2841, 21.1311)
Luminance	0.0328 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172881 #817017

analogous

#175D81 #172881 #3B1781

triadic

#172881 #811728 #288117

tetradic

#172881 #81175D #817017 #17813B

square

#172881 #81175D #817017 #17813B

split-complementary

#172881 #813B17 #5D8117

monochromatic

#05081A #0E184D #172881 #2038B5 #3751DB

Accessibility & contrast

On white

12.67

#172881 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#172881 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172881

12.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172881	#FFFFFF	#000000	##FFFFFF
##172881	1.00	12.67	1.66	12.67
#FFFFFF	12.67	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003884

Deuteranopia (green-blind)

#002E7F

Tritanopia (blue-blind)

#004051

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #172881;
/* rgb */ color: rgb(23, 40, 129);
/* oklch */ color: oklch(33.1% 0.150 268.0);

Tailwind

colors: {
  custom: {
    50: '#6862a7',
    500: '#172881',
    950: '#000000',
  },
}

SCSS

$custom: #172881;
$custom-light: #6862a7;
$custom-dark: #000000;

JSON

{
  "hex": "#172881",
  "rgb": {
    "r": 23,
    "g": 40,
    "b": 129
  },
  "hsl": {
    "h": 230.377,
    "s": 69.737,
    "l": 29.804
  },
  "oklch": {
    "l": 0.33141,
    "c": 0.14993,
    "h": 268
  },
  "luminance": 0.03285
}

Semantic roles & 50–950 ramp

primary

#172881

secondary

#B5A23E

accent

#D03BED

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #172881

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

Preview Lab → · Contrast checker → · Palette generator →