#1D1C8E#1D1C8E

#1D1C8E is a dark, vivid blue. Relative luminance 0.030; OKLCH L 33.0% C 0.178 H 271.4°. Best body text is #FFFFFF at 13.05:1 contrast (WCAG AA passes).

Color values

HEX	#1D1C8E
RGB	rgb(29, 28, 142)
HSL	hsl(241, 67%, 33%)
HSV	hsv(241, 80%, 56%)
CMYK	cmyk(79.6%, 80.3%, 0%, 44.3%)
CIE-LAB	lab(20.22, 40.76, -61.42)
CIE-LCH	lch(20.22, 73.72, 303.57°)
OKLab	oklab(32.98% 0.0044 -0.1778)
OKLCH	oklch(32.98% 0.178 271.4)
XYZ	xyz(5.8028, 3.0441, 25.8677)
Luminance	0.0305 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1C8E #8D8E1C

analogous

#1C548E #1D1C8E #561C8E

triadic

#1D1C8E #8E1D1C #1C8E1D

tetradic

#1D1C8E #8E1C54 #8D8E1C #1C8E56

square

#1D1C8E #8E1C54 #8D8E1C #1C8E56

split-complementary

#1D1C8E #8E561C #548E1C

monochromatic

#080828 #13125B #1D1C8E #2726C1 #4B49DB

Accessibility & contrast

On white

13.05

#1D1C8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#1D1C8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1C8E

13.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1C8E	#FFFFFF	#000000	##FFFFFF
##1D1C8E	1.00	13.05	1.61	13.05
#FFFFFF	13.05	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003691

Deuteranopia (green-blind)

#002B8C

Tritanopia (blue-blind)

#003F55

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1d1c8e;
/* rgb */ color: rgb(29, 28, 142);
/* oklch */ color: oklch(33.0% 0.178 271.4);

Tailwind

colors: {
  custom: {
    50: '#6f5bb0',
    500: '#1d1c8e',
    950: '#000000',
  },
}

SCSS

$custom: #1d1c8e;
$custom-light: #6f5bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1c8e",
  "rgb": {
    "r": 29,
    "g": 28,
    "b": 142
  },
  "hsl": {
    "h": 240.526,
    "s": 67.059,
    "l": 33.333
  },
  "oklch": {
    "l": 0.32984,
    "c": 0.17786,
    "h": 271.4
  },
  "luminance": 0.03045
}

Semantic roles & 50–950 ramp

primary

#1D1C8E

secondary

#BCBD49

accent

#EA3EE8

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1D1C8E

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

Preview Lab → · Contrast checker → · Palette generator →