#1D166D#1D166D

#1D166D is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.3% C 0.142 H 275.9°. Best body text is #FFFFFF at 15.13:1 contrast (WCAG AA passes).

Color values

HEX	#1D166D
RGB	rgb(29, 22, 109)
HSL	hsl(245, 66%, 26%)
HSV	hsv(245, 80%, 43%)
CMYK	cmyk(73.4%, 79.8%, 0%, 57.3%)
CIE-LAB	lab(15.16, 32.86, -48.76)
CIE-LCH	lch(15.16, 58.80, 303.98°)
OKLab	oklab(28.29% 0.0146 -0.141)
OKLCH	oklch(28.29% 0.142 275.9)
XYZ	xyz(3.5530, 1.9388, 14.6520)
Luminance	0.0194 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D166D #666D16

analogous

#163A6D #1D166D #48166D

triadic

#1D166D #6D1D16 #166D1D

tetradic

#1D166D #6D163A #666D16 #166D48

square

#1D166D #6D163A #666D16 #166D48

split-complementary

#1D166D #6D4816 #3A6D16

monochromatic

#070519 #0F0C3A #1D166D #2B20A0 #382BD3

Accessibility & contrast

On white

15.13

#1D166D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#1D166D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D166D

15.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D166D	#FFFFFF	#000000	##FFFFFF
##1D166D	1.00	15.13	1.39	15.13
#FFFFFF	15.13	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.13	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: #1d166d;
/* rgb */ color: rgb(29, 22, 109);
/* oklch */ color: oklch(28.3% 0.142 275.9);

Tailwind

colors: {
  custom: {
    50: '#675598',
    500: '#1d166d',
    950: '#000000',
  },
}

SCSS

$custom: #1d166d;
$custom-light: #675598;
$custom-dark: #000000;

JSON

{
  "hex": "#1d166d",
  "rgb": {
    "r": 29,
    "g": 22,
    "b": 109
  },
  "hsl": {
    "h": 244.828,
    "s": 66.412,
    "l": 25.686
  },
  "oklch": {
    "l": 0.28294,
    "c": 0.14172,
    "h": 275.9
  },
  "luminance": 0.01939
}

Semantic roles & 50–950 ramp

primary

#1D166D

secondary

#9BA33C

accent

#E93EDC

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1D166D

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

Preview Lab → · Contrast checker → · Palette generator →