#1C166A#1C166A

#1C166A is a dark, vivid blue. Relative luminance 0.019; OKLCH L 27.9% C 0.138 H 275.8°. Best body text is #FFFFFF at 15.30:1 contrast (WCAG AA passes).

Color values

HEX	#1C166A
RGB	rgb(28, 22, 106)
HSL	hsl(244, 66%, 25%)
HSV	hsv(244, 79%, 42%)
CMYK	cmyk(73.6%, 79.2%, 0%, 58.4%)
CIE-LAB	lab(14.74, 31.70, -47.50)
CIE-LCH	lch(14.74, 57.11, 303.72°)
OKLab	oklab(27.87% 0.0139 -0.1373)
OKLCH	oklch(27.87% 0.138 275.8)
XYZ	xyz(3.3665, 1.8610, 13.8147)
Luminance	0.0186 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C166A #646A16

analogous

#163A6A #1C166A #46166A

triadic

#1C166A #6A1C16 #166A1C

tetradic

#1C166A #6A163A #646A16 #166A46

square

#1C166A #6A163A #646A16 #166A46

split-complementary

#1C166A #6A4616 #3A6A16

monochromatic

#070519 #0F0B37 #1C166A #29219D #372BCF

Accessibility & contrast

On white

15.30

#1C166A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#1C166A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C166A

15.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C166A	#FFFFFF	#000000	##FFFFFF
##1C166A	1.00	15.30	1.37	15.30
#FFFFFF	15.30	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00296C

Deuteranopia (green-blind)

#002169

Tritanopia (blue-blind)

#002E3F

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #1c166a;
/* rgb */ color: rgb(28, 22, 106);
/* oklch */ color: oklch(27.9% 0.138 275.8);

Tailwind

colors: {
  custom: {
    50: '#665596',
    500: '#1c166a',
    950: '#000000',
  },
}

SCSS

$custom: #1c166a;
$custom-light: #665596;
$custom-dark: #000000;

JSON

{
  "hex": "#1c166a",
  "rgb": {
    "r": 28,
    "g": 22,
    "b": 106
  },
  "hsl": {
    "h": 244.286,
    "s": 65.625,
    "l": 25.098
  },
  "oklch": {
    "l": 0.27873,
    "c": 0.13801,
    "h": 275.8
  },
  "luminance": 0.01861
}

Semantic roles & 50–950 ramp

primary

#1C166A

secondary

#99A03B

accent

#E93FDC

background

#F6F5F9

surface

#EBE8F2

border

#C6C4CC

text

#07030D

muted

#7A787E

Preview Lab

Preview with #1C166A

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

Preview Lab → · Contrast checker → · Palette generator →