#1C176B#1C176B

#1C176B is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.1% C 0.138 H 275.4°. Best body text is #FFFFFF at 15.17:1 contrast (WCAG AA passes).

Color values

HEX	#1C176B
RGB	rgb(28, 23, 107)
HSL	hsl(244, 65%, 25%)
HSV	hsv(244, 79%, 42%)
CMYK	cmyk(73.8%, 78.5%, 0%, 58%)
CIE-LAB	lab(15.07, 31.46, -47.61)
CIE-LCH	lch(15.07, 57.07, 303.45°)
OKLab	oklab(28.14% 0.0131 -0.1377)
OKLCH	oklch(28.14% 0.138 275.4)
XYZ	xyz(3.4383, 1.9209, 14.0966)
Luminance	0.0192 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C176B #666B17

analogous

#173C6B #1C176B #46176B

triadic

#1C176B #6B1C17 #176B1C

tetradic

#1C176B #6B173C #666B17 #176B46

square

#1C176B #6B173C #666B17 #176B46

split-complementary

#1C176B #6B4617 #3C6B17

monochromatic

#070519 #0F0C39 #1C176B #29229D #362DD0

Accessibility & contrast

On white

15.17

#1C176B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#1C176B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C176B

15.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C176B	#FFFFFF	#000000	##FFFFFF
##1C176B	1.00	15.17	1.38	15.17
#FFFFFF	15.17	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00296D

Deuteranopia (green-blind)

#002269

Tritanopia (blue-blind)

#002F40

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #1c176b;
/* rgb */ color: rgb(28, 23, 107);
/* oklch */ color: oklch(28.1% 0.138 275.4);

Tailwind

colors: {
  custom: {
    50: '#665596',
    500: '#1c176b',
    950: '#000000',
  },
}

SCSS

$custom: #1c176b;
$custom-light: #665596;
$custom-dark: #000000;

JSON

{
  "hex": "#1c176b",
  "rgb": {
    "r": 28,
    "g": 23,
    "b": 107
  },
  "hsl": {
    "h": 243.571,
    "s": 64.615,
    "l": 25.49
  },
  "oklch": {
    "l": 0.28138,
    "c": 0.13828,
    "h": 275.4
  },
  "luminance": 0.01921
}

Semantic roles & 50–950 ramp

primary

#1C176B

secondary

#9BA13D

accent

#E840DE

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030D

muted

#7A787E

Preview Lab

Preview with #1C176B

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

Preview Lab → · Contrast checker → · Palette generator →