#1C176A#1C176A

#1C176A is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.0% C 0.137 H 275.6°. Best body text is #FFFFFF at 15.22:1 contrast (WCAG AA passes).

Color values

HEX	#1C176A
RGB	rgb(28, 23, 106)
HSL	hsl(244, 64%, 25%)
HSV	hsv(244, 78%, 42%)
CMYK	cmyk(73.6%, 78.3%, 0%, 58.4%)
CIE-LAB	lab(14.95, 31.10, -47.15)
CIE-LCH	lch(14.95, 56.48, 303.41°)
OKLab	oklab(28.02% 0.0133 -0.1363)
OKLCH	oklch(28.02% 0.137 275.6)
XYZ	xyz(3.3859, 1.9000, 13.8212)
Luminance	0.0190 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C176A #656A17

analogous

#173C6A #1C176A #45176A

triadic

#1C176A #6A1C17 #176A1C

tetradic

#1C176A #6A173C #656A17 #176A45

square

#1C176A #6A173C #656A17 #176A45

split-complementary

#1C176A #6A4517 #3C6A17

monochromatic

#070519 #0F0C38 #1C176A #29229C #372DCF

Accessibility & contrast

On white

15.22

#1C176A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#1C176A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C176A

15.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C176A	#FFFFFF	#000000	##FFFFFF
##1C176A	1.00	15.22	1.38	15.22
#FFFFFF	15.22	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00296C

Deuteranopia (green-blind)

#002269

Tritanopia (blue-blind)

#002F3F

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #1c176a;
/* rgb */ color: rgb(28, 23, 106);
/* oklch */ color: oklch(28.0% 0.137 275.6);

Tailwind

colors: {
  custom: {
    50: '#665596',
    500: '#1c176a',
    950: '#000000',
  },
}

SCSS

$custom: #1c176a;
$custom-light: #665596;
$custom-dark: #000000;

JSON

{
  "hex": "#1c176a",
  "rgb": {
    "r": 28,
    "g": 23,
    "b": 106
  },
  "hsl": {
    "h": 243.614,
    "s": 64.341,
    "l": 25.294
  },
  "oklch": {
    "l": 0.28024,
    "c": 0.13694,
    "h": 275.6
  },
  "luminance": 0.019
}

Semantic roles & 50–950 ramp

primary

#1C176A

secondary

#9AA03D

accent

#E740DD

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030D

muted

#7A787E

Preview Lab

Preview with #1C176A

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

Preview Lab → · Contrast checker → · Palette generator →