#1D1C83#1D1C83

#1D1C83 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.7% C 0.164 H 272.4°. Best body text is #FFFFFF at 13.58:1 contrast (WCAG AA passes).

Color values

HEX	#1D1C83
RGB	rgb(29, 28, 131)
HSL	hsl(241, 65%, 31%)
HSV	hsv(241, 79%, 51%)
CMYK	cmyk(77.9%, 78.6%, 0%, 48.6%)
CIE-LAB	lab(18.93, 37.01, -56.66)
CIE-LCH	lch(18.93, 67.68, 303.15°)
OKLab	oklab(31.7% 0.0067 -0.164)
OKLCH	oklch(31.7% 0.164 272.4)
XYZ	xyz(5.0173, 2.7299, 21.7308)
Luminance	0.0273 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1C83 #82831C

analogous

#1C4E83 #1D1C83 #501C83

triadic

#1D1C83 #831D1C #1C831D

tetradic

#1D1C83 #831C4E #82831C #1C8350

square

#1D1C83 #831C4E #82831C #1C8350

split-complementary

#1D1C83 #83501C #4E831C

monochromatic

#07061E #121151 #1D1C83 #2827B5 #4443D7

Accessibility & contrast

On white

13.58

#1D1C83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#1D1C83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1C83

13.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1C83	#FFFFFF	#000000	##FFFFFF
##1D1C83	1.00	13.58	1.55	13.58
#FFFFFF	13.58	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003386

Deuteranopia (green-blind)

#002981

Tritanopia (blue-blind)

#003B4E

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1d1c83;
/* rgb */ color: rgb(29, 28, 131);
/* oklch */ color: oklch(31.7% 0.164 272.4);

Tailwind

colors: {
  custom: {
    50: '#6c5aa8',
    500: '#1d1c83',
    950: '#000000',
  },
}

SCSS

$custom: #1d1c83;
$custom-light: #6c5aa8;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1c83",
  "rgb": {
    "r": 29,
    "g": 28,
    "b": 131
  },
  "hsl": {
    "h": 240.583,
    "s": 64.78,
    "l": 31.176
  },
  "oklch": {
    "l": 0.31698,
    "c": 0.16413,
    "h": 272.4
  },
  "luminance": 0.0273
}

Semantic roles & 50–950 ramp

primary

#1D1C83

secondary

#B5B645

accent

#E840E6

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1D1C83

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

Preview Lab → · Contrast checker → · Palette generator →