#1D1778#1D1778

#1D1778 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.7% C 0.155 H 274.2°. Best body text is #FFFFFF at 14.52:1 contrast (WCAG AA passes).

Color values

HEX	#1D1778
RGB	rgb(29, 23, 120)
HSL	hsl(244, 68%, 28%)
HSV	hsv(244, 81%, 47%)
CMYK	cmyk(75.8%, 80.8%, 0%, 52.9%)
CIE-LAB	lab(16.65, 36.07, -53.42)
CIE-LCH	lch(16.65, 64.46, 304.03°)
OKLab	oklab(29.72% 0.0114 -0.1545)
OKLCH	oklch(29.72% 0.155 274.2)
XYZ	xyz(4.2021, 2.2296, 17.9746)
Luminance	0.0223 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1778 #727817

analogous

#174278 #1D1778 #4D1778

triadic

#1D1778 #781D17 #17781D

tetradic

#1D1778 #781742 #727817 #17784D

square

#1D1778 #781742 #727817 #17784D

split-complementary

#1D1778 #784D17 #427817

monochromatic

#06051A #110D45 #1D1778 #2921AB #3C32D8

Accessibility & contrast

On white

14.52

#1D1778 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#1D1778 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1778

14.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1778	#FFFFFF	#000000	##FFFFFF
##1D1778	1.00	14.52	1.45	14.52
#FFFFFF	14.52	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E7B

Deuteranopia (green-blind)

#002576

Tritanopia (blue-blind)

#003447

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1d1778;
/* rgb */ color: rgb(29, 23, 120);
/* oklch */ color: oklch(29.7% 0.155 274.2);

Tailwind

colors: {
  custom: {
    50: '#6a56a0',
    500: '#1d1778',
    950: '#000000',
  },
}

SCSS

$custom: #1d1778;
$custom-light: #6a56a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1778",
  "rgb": {
    "r": 29,
    "g": 23,
    "b": 120
  },
  "hsl": {
    "h": 243.711,
    "s": 67.832,
    "l": 28.039
  },
  "oklch": {
    "l": 0.29717,
    "c": 0.15495,
    "h": 274.2
  },
  "luminance": 0.0223
}

Semantic roles & 50–950 ramp

primary

#1D1778

secondary

#A6AD3E

accent

#EB3DE0

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07030F

muted

#7A787F

Preview Lab

Preview with #1D1778

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

Preview Lab → · Contrast checker → · Palette generator →