#1D1B8D#1D1B8D

#1D1B8D is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.7% C 0.178 H 271.6°. Best body text is #FFFFFF at 13.18:1 contrast (WCAG AA passes).

Color values

HEX	#1D1B8D
RGB	rgb(29, 27, 141)
HSL	hsl(241, 68%, 33%)
HSV	hsv(241, 81%, 55%)
CMYK	cmyk(79.4%, 80.9%, 0%, 44.7%)
CIE-LAB	lab(19.91, 40.97, -61.31)
CIE-LCH	lch(19.91, 73.73, 303.75°)
OKLab	oklab(32.74% 0.0049 -0.1775)
OKLCH	oklch(32.74% 0.178 271.6)
XYZ	xyz(5.7047, 2.9675, 25.4663)
Luminance	0.0297 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1B8D #8B8D1B

analogous

#1B528D #1D1B8D #561B8D

triadic

#1D1B8D #8D1D1B #1B8D1D

tetradic

#1D1B8D #8D1B52 #8B8D1B #1B8D56

square

#1D1B8D #8D1B52 #8B8D1B #1B8D56

split-complementary

#1D1B8D #8D561B #528D1B

monochromatic

#080726 #12115A #1D1B8D #2825C0 #4947DC

Accessibility & contrast

On white

13.18

#1D1B8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#1D1B8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1B8D

13.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1B8D	#FFFFFF	#000000	##FFFFFF
##1D1B8D	1.00	13.18	1.59	13.18
#FFFFFF	13.18	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003690

Deuteranopia (green-blind)

#002A8B

Tritanopia (blue-blind)

#003E54

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1d1b8d;
/* rgb */ color: rgb(29, 27, 141);
/* oklch */ color: oklch(32.7% 0.178 271.6);

Tailwind

colors: {
  custom: {
    50: '#6f5ab0',
    500: '#1d1b8d',
    950: '#000000',
  },
}

SCSS

$custom: #1d1b8d;
$custom-light: #6f5ab0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1b8d",
  "rgb": {
    "r": 29,
    "g": 27,
    "b": 141
  },
  "hsl": {
    "h": 241.053,
    "s": 67.857,
    "l": 32.941
  },
  "oklch": {
    "l": 0.32735,
    "c": 0.17753,
    "h": 271.6
  },
  "luminance": 0.02968
}

Semantic roles & 50–950 ramp

primary

#1D1B8D

secondary

#BBBD46

accent

#EB3DE8

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1D1B8D

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

Preview Lab → · Contrast checker → · Palette generator →