#1C176D#1C176D

#1C176D is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.4% C 0.141 H 275.1°. Best body text is #FFFFFF at 15.08:1 contrast (WCAG AA passes).

Color values

HEX	#1C176D
RGB	rgb(28, 23, 109)
HSL	hsl(243, 65%, 26%)
HSV	hsv(243, 79%, 43%)
CMYK	cmyk(74.3%, 78.9%, 0%, 57.3%)
CIE-LAB	lab(15.29, 32.16, -48.54)
CIE-LCH	lch(15.29, 58.23, 303.52°)
OKLab	oklab(28.37% 0.0126 -0.1404)
OKLCH	oklch(28.37% 0.141 275.1)
XYZ	xyz(3.5447, 1.9635, 14.6572)
Luminance	0.0196 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C176D #686D17

analogous

#173D6D #1C176D #47176D

triadic

#1C176D #6D1C17 #176D1C

tetradic

#1C176D #6D173D #686D17 #176D47

square

#1C176D #6D173D #686D17 #176D47

split-complementary

#1C176D #6D4717 #3D6D17

monochromatic

#060519 #0F0C3A #1C176D #2922A0 #362CD2

Accessibility & contrast

On white

15.08

#1C176D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#1C176D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C176D

15.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C176D	#FFFFFF	#000000	##FFFFFF
##1C176D	1.00	15.08	1.39	15.08
#FFFFFF	15.08	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A6F

Deuteranopia (green-blind)

#00226B

Tritanopia (blue-blind)

#003041

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #1c176d;
/* rgb */ color: rgb(28, 23, 109);
/* oklch */ color: oklch(28.4% 0.141 275.1);

Tailwind

colors: {
  custom: {
    50: '#665598',
    500: '#1c176d',
    950: '#000000',
  },
}

SCSS

$custom: #1c176d;
$custom-light: #665598;
$custom-dark: #000000;

JSON

{
  "hex": "#1c176d",
  "rgb": {
    "r": 28,
    "g": 23,
    "b": 109
  },
  "hsl": {
    "h": 243.488,
    "s": 65.152,
    "l": 25.882
  },
  "oklch": {
    "l": 0.28366,
    "c": 0.14094,
    "h": 275.1
  },
  "luminance": 0.01964
}

Semantic roles & 50–950 ramp

primary

#1C176D

secondary

#9DA33D

accent

#E840DE

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1C176D

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

Preview Lab → · Contrast checker → · Palette generator →