#1C166C#1C166C

#1C166C is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.1% C 0.141 H 275.5°. Best body text is #FFFFFF at 15.21:1 contrast (WCAG AA passes).

Color values

HEX	#1C166C
RGB	rgb(28, 22, 108)
HSL	hsl(244, 66%, 25%)
HSV	hsv(244, 80%, 42%)
CMYK	cmyk(74.1%, 79.6%, 0%, 57.6%)
CIE-LAB	lab(14.97, 32.40, -48.43)
CIE-LCH	lch(14.97, 58.27, 303.79°)
OKLab	oklab(28.1% 0.0134 -0.14)
OKLCH	oklch(28.1% 0.141 275.5)
XYZ	xyz(3.4717, 1.9031, 14.3688)
Luminance	0.0190 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C166C #666C16

analogous

#163B6C #1C166C #47166C

triadic

#1C166C #6C1C16 #166C1C

tetradic

#1C166C #6C163B #666C16 #166C47

square

#1C166C #6C163B #666C16 #166C47

split-complementary

#1C166C #6C4716 #3B6C16

monochromatic

#070519 #0F0C39 #1C166C #29209F #362BD2

Accessibility & contrast

On white

15.21

#1C166C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#1C166C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C166C

15.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C166C	#FFFFFF	#000000	##FFFFFF
##1C166C	1.00	15.21	1.38	15.21
#FFFFFF	15.21	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00296E

Deuteranopia (green-blind)

#00226A

Tritanopia (blue-blind)

#002F40

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #1c166c;
/* rgb */ color: rgb(28, 22, 108);
/* oklch */ color: oklch(28.1% 0.141 275.5);

Tailwind

colors: {
  custom: {
    50: '#665597',
    500: '#1c166c',
    950: '#000000',
  },
}

SCSS

$custom: #1c166c;
$custom-light: #665597;
$custom-dark: #000000;

JSON

{
  "hex": "#1c166c",
  "rgb": {
    "r": 28,
    "g": 22,
    "b": 108
  },
  "hsl": {
    "h": 244.186,
    "s": 66.154,
    "l": 25.49
  },
  "oklch": {
    "l": 0.28104,
    "c": 0.14066,
    "h": 275.5
  },
  "luminance": 0.01903
}

Semantic roles & 50–950 ramp

primary

#1C166C

secondary

#9BA23C

accent

#E93FDD

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1C166C

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

Preview Lab → · Contrast checker → · Palette generator →