#1D166C#1D166C

#1D166C is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.2% C 0.140 H 276.1°. Best body text is #FFFFFF at 15.18:1 contrast (WCAG AA passes).

Color values

HEX	#1D166C
RGB	rgb(29, 22, 108)
HSL	hsl(245, 66%, 25%)
HSV	hsv(245, 80%, 42%)
CMYK	cmyk(73.1%, 79.6%, 0%, 57.6%)
CIE-LAB	lab(15.05, 32.51, -48.30)
CIE-LCH	lch(15.05, 58.22, 303.95°)
OKLab	oklab(28.18% 0.0149 -0.1396)
OKLCH	oklch(28.18% 0.14 276.1)
XYZ	xyz(3.4995, 1.9174, 14.3701)
Luminance	0.0192 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D166C #656C16

analogous

#163A6C #1D166C #48166C

triadic

#1D166C #6C1D16 #166C1D

tetradic

#1D166C #6C163A #656C16 #166C48

square

#1D166C #6C163A #656C16 #166C48

split-complementary

#1D166C #6C4816 #3A6C16

monochromatic

#070519 #0F0C39 #1D166C #2B209F #382BD2

Accessibility & contrast

On white

15.18

#1D166C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#1D166C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D166C

15.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D166C	#FFFFFF	#000000	##FFFFFF
##1D166C	1.00	15.18	1.38	15.18
#FFFFFF	15.18	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.18	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: #1d166c;
/* rgb */ color: rgb(29, 22, 108);
/* oklch */ color: oklch(28.2% 0.140 276.1);

Tailwind

colors: {
  custom: {
    50: '#675597',
    500: '#1d166c',
    950: '#000000',
  },
}

SCSS

$custom: #1d166c;
$custom-light: #675597;
$custom-dark: #000000;

JSON

{
  "hex": "#1d166c",
  "rgb": {
    "r": 29,
    "g": 22,
    "b": 108
  },
  "hsl": {
    "h": 244.884,
    "s": 66.154,
    "l": 25.49
  },
  "oklch": {
    "l": 0.28178,
    "c": 0.1404,
    "h": 276.1
  },
  "luminance": 0.01918
}

Semantic roles & 50–950 ramp

primary

#1D166C

secondary

#9AA23C

accent

#E93FDB

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1D166C

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

Preview Lab → · Contrast checker → · Palette generator →