#1D1C8B#1D1C8B

#1D1C8B is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.6% C 0.174 H 271.7°. Best body text is #FFFFFF at 13.20:1 contrast (WCAG AA passes).

Color values

HEX	#1D1C8B
RGB	rgb(29, 28, 139)
HSL	hsl(241, 66%, 33%)
HSV	hsv(241, 80%, 55%)
CMYK	cmyk(79.1%, 79.9%, 0%, 45.5%)
CIE-LAB	lab(19.86, 39.75, -60.14)
CIE-LCH	lch(19.86, 72.09, 303.46°)
OKLab	oklab(32.63% 0.005 -0.1741)
OKLCH	oklch(32.63% 0.174 271.7)
XYZ	xyz(5.5806, 2.9552, 24.6974)
Luminance	0.0296 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1C8B #8A8B1C

analogous

#1C528B #1D1C8B #551C8B

triadic

#1D1C8B #8B1D1C #1C8B1D

tetradic

#1D1C8B #8B1C52 #8A8B1C #1C8B55

square

#1D1C8B #8B1C52 #8A8B1C #1C8B55

split-complementary

#1D1C8B #8B551C #528B1C

monochromatic

#080725 #121258 #1D1C8B #2826BE #4947DA

Accessibility & contrast

On white

13.20

#1D1C8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#1D1C8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1C8B

13.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1C8B	#FFFFFF	#000000	##FFFFFF
##1D1C8B	1.00	13.20	1.59	13.20
#FFFFFF	13.20	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358E

Deuteranopia (green-blind)

#002A89

Tritanopia (blue-blind)

#003E53

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1d1c8b;
/* rgb */ color: rgb(29, 28, 139);
/* oklch */ color: oklch(32.6% 0.174 271.7);

Tailwind

colors: {
  custom: {
    50: '#6e5aae',
    500: '#1d1c8b',
    950: '#000000',
  },
}

SCSS

$custom: #1d1c8b;
$custom-light: #6e5aae;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1c8b",
  "rgb": {
    "r": 29,
    "g": 28,
    "b": 139
  },
  "hsl": {
    "h": 240.541,
    "s": 66.467,
    "l": 32.745
  },
  "oklch": {
    "l": 0.32631,
    "c": 0.17416,
    "h": 271.7
  },
  "luminance": 0.02956
}

Semantic roles & 50–950 ramp

primary

#1D1C8B

secondary

#BBBC47

accent

#E93EE8

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090410

muted

#7B797F

Preview Lab

Preview with #1D1C8B

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

Preview Lab → · Contrast checker → · Palette generator →