#1D1877#1D1877

#1D1877 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.7% C 0.153 H 274.2°. Best body text is #FFFFFF at 14.49:1 contrast (WCAG AA passes).

Color values

HEX	#1D1877
RGB	rgb(29, 24, 119)
HSL	hsl(243, 66%, 28%)
HSV	hsv(243, 80%, 47%)
CMYK	cmyk(75.6%, 79.8%, 0%, 53.3%)
CIE-LAB	lab(16.73, 35.16, -52.65)
CIE-LCH	lch(16.73, 63.31, 303.74°)
OKLab	oklab(29.74% 0.0112 -0.1523)
OKLCH	oklch(29.74% 0.153 274.2)
XYZ	xyz(4.1620, 2.2460, 17.6634)
Luminance	0.0225 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1877 #727718

analogous

#184277 #1D1877 #4C1877

triadic

#1D1877 #771D18 #18771D

tetradic

#1D1877 #771842 #727718 #18774C

square

#1D1877 #771842 #727718 #18774C

split-complementary

#1D1877 #774C18 #427718

monochromatic

#060519 #110E44 #1D1877 #2922AA #3C33D6

Accessibility & contrast

On white

14.49

#1D1877 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#1D1877 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1877

14.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1877	#FFFFFF	#000000	##FFFFFF
##1D1877	1.00	14.49	1.45	14.49
#FFFFFF	14.49	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E7A

Deuteranopia (green-blind)

#002575

Tritanopia (blue-blind)

#003447

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1d1877;
/* rgb */ color: rgb(29, 24, 119);
/* oklch */ color: oklch(29.7% 0.153 274.2);

Tailwind

colors: {
  custom: {
    50: '#69579f',
    500: '#1d1877',
    950: '#000000',
  },
}

SCSS

$custom: #1d1877;
$custom-light: #69579f;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1877",
  "rgb": {
    "r": 29,
    "g": 24,
    "b": 119
  },
  "hsl": {
    "h": 243.158,
    "s": 66.434,
    "l": 28.039
  },
  "oklch": {
    "l": 0.29739,
    "c": 0.1527,
    "h": 274.2
  },
  "luminance": 0.02246
}

Semantic roles & 50–950 ramp

primary

#1D1877

secondary

#A6AC3F

accent

#E93EE0

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030F

muted

#7A787E

Preview Lab

Preview with #1D1877

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

Preview Lab → · Contrast checker → · Palette generator →