#1D166A#1D166A

#1D166A is a dark, vivid blue. Relative luminance 0.019; OKLCH L 27.9% C 0.138 H 276.4°. Best body text is #FFFFFF at 15.27:1 contrast (WCAG AA passes).

Color values

HEX	#1D166A
RGB	rgb(29, 22, 106)
HSL	hsl(245, 66%, 25%)
HSV	hsv(245, 79%, 42%)
CMYK	cmyk(72.6%, 79.2%, 0%, 58.4%)
CIE-LAB	lab(14.82, 31.82, -47.37)
CIE-LCH	lch(14.82, 57.06, 303.89°)
OKLab	oklab(27.95% 0.0153 -0.1369)
OKLCH	oklch(27.95% 0.138 276.4)
XYZ	xyz(3.3943, 1.8753, 13.8160)
Luminance	0.0188 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D166A #636A16

analogous

#16396A #1D166A #47166A

triadic

#1D166A #6A1D16 #166A1D

tetradic

#1D166A #6A1639 #636A16 #166A47

square

#1D166A #6A1639 #636A16 #166A47

split-complementary

#1D166A #6A4716 #396A16

monochromatic

#070519 #0F0B37 #1D166A #2B219D #392BCF

Accessibility & contrast

On white

15.27

#1D166A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#1D166A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D166A

15.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D166A	#FFFFFF	#000000	##FFFFFF
##1D166A	1.00	15.27	1.38	15.27
#FFFFFF	15.27	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00296C

Deuteranopia (green-blind)

#002268

Tritanopia (blue-blind)

#002E3F

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #1d166a;
/* rgb */ color: rgb(29, 22, 106);
/* oklch */ color: oklch(27.9% 0.138 276.4);

Tailwind

colors: {
  custom: {
    50: '#665596',
    500: '#1d166a',
    950: '#000000',
  },
}

SCSS

$custom: #1d166a;
$custom-light: #665596;
$custom-dark: #000000;

JSON

{
  "hex": "#1d166a",
  "rgb": {
    "r": 29,
    "g": 22,
    "b": 106
  },
  "hsl": {
    "h": 245,
    "s": 65.625,
    "l": 25.098
  },
  "oklch": {
    "l": 0.27949,
    "c": 0.13775,
    "h": 276.4
  },
  "luminance": 0.01876
}

Semantic roles & 50–950 ramp

primary

#1D166A

secondary

#98A03B

accent

#E93FDA

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030D

muted

#7A787E

Preview Lab

Preview with #1D166A

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

Preview Lab → · Contrast checker → · Palette generator →