#1D1C84#1D1C84

#1D1C84 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.8% C 0.165 H 272.3°. Best body text is #FFFFFF at 13.53:1 contrast (WCAG AA passes).

Color values

HEX	#1D1C84
RGB	rgb(29, 28, 132)
HSL	hsl(241, 65%, 31%)
HSV	hsv(241, 79%, 52%)
CMYK	cmyk(78%, 78.8%, 0%, 48.2%)
CIE-LAB	lab(19.04, 37.36, -57.10)
CIE-LCH	lch(19.04, 68.23, 303.20°)
OKLab	oklab(31.81% 0.0065 -0.1653)
OKLCH	oklch(31.81% 0.165 272.3)
XYZ	xyz(5.0854, 2.7571, 22.0895)
Luminance	0.0276 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1C84 #83841C

analogous

#1C4F84 #1D1C84 #511C84

triadic

#1D1C84 #841D1C #1C841D

tetradic

#1D1C84 #841C4F #83841C #1C8451

square

#1D1C84 #841C4F #83841C #1C8451

split-complementary

#1D1C84 #84511C #4F841C

monochromatic

#07071F #121152 #1D1C84 #2827B6 #4543D7

Accessibility & contrast

On white

13.53

#1D1C84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#1D1C84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1C84

13.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1C84	#FFFFFF	#000000	##FFFFFF
##1D1C84	1.00	13.53	1.55	13.53
#FFFFFF	13.53	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003387

Deuteranopia (green-blind)

#002982

Tritanopia (blue-blind)

#003B4F

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1d1c84;
/* rgb */ color: rgb(29, 28, 132);
/* oklch */ color: oklch(31.8% 0.165 272.3);

Tailwind

colors: {
  custom: {
    50: '#6c5aa9',
    500: '#1d1c84',
    950: '#000000',
  },
}

SCSS

$custom: #1d1c84;
$custom-light: #6c5aa9;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1c84",
  "rgb": {
    "r": 29,
    "g": 28,
    "b": 132
  },
  "hsl": {
    "h": 240.577,
    "s": 65,
    "l": 31.373
  },
  "oklch": {
    "l": 0.31814,
    "c": 0.1654,
    "h": 272.3
  },
  "luminance": 0.02758
}

Semantic roles & 50–950 ramp

primary

#1D1C84

secondary

#B6B745

accent

#E840E6

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1D1C84

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

Preview Lab → · Contrast checker → · Palette generator →