#1D1C8A#1D1C8A

#1D1C8A is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.5% C 0.173 H 271.7°. Best body text is #FFFFFF at 13.25:1 contrast (WCAG AA passes).

Color values

HEX	#1D1C8A
RGB	rgb(29, 28, 138)
HSL	hsl(241, 66%, 33%)
HSV	hsv(241, 80%, 54%)
CMYK	cmyk(79%, 79.7%, 0%, 45.9%)
CIE-LAB	lab(19.75, 39.41, -59.71)
CIE-LCH	lch(19.75, 71.54, 303.43°)
OKLab	oklab(32.51% 0.0053 -0.1728)
OKLCH	oklch(32.51% 0.173 271.7)
XYZ	xyz(5.5078, 2.9261, 24.3143)
Luminance	0.0293 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1C8A #898A1C

analogous

#1C528A #1D1C8A #541C8A

triadic

#1D1C8A #8A1D1C #1C8A1D

tetradic

#1D1C8A #8A1C52 #898A1C #1C8A54

square

#1D1C8A #8A1C52 #898A1C #1C8A54

split-complementary

#1D1C8A #8A541C #528A1C

monochromatic

#080724 #121257 #1D1C8A #2826BD #4847DA

Accessibility & contrast

On white

13.25

#1D1C8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#1D1C8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1C8A

13.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1C8A	#FFFFFF	#000000	##FFFFFF
##1D1C8A	1.00	13.25	1.59	13.25
#FFFFFF	13.25	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358D

Deuteranopia (green-blind)

#002A88

Tritanopia (blue-blind)

#003D52

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1d1c8a;
/* rgb */ color: rgb(29, 28, 138);
/* oklch */ color: oklch(32.5% 0.173 271.7);

Tailwind

colors: {
  custom: {
    50: '#6e5aad',
    500: '#1d1c8a',
    950: '#000000',
  },
}

SCSS

$custom: #1d1c8a;
$custom-light: #6e5aad;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1c8a",
  "rgb": {
    "r": 29,
    "g": 28,
    "b": 138
  },
  "hsl": {
    "h": 240.545,
    "s": 66.265,
    "l": 32.549
  },
  "oklch": {
    "l": 0.32513,
    "c": 0.17292,
    "h": 271.7
  },
  "luminance": 0.02927
}

Semantic roles & 50–950 ramp

primary

#1D1C8A

secondary

#BABB46

accent

#E93FE8

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1D1C8A

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

Preview Lab → · Contrast checker → · Palette generator →