#1D2788#1D2788

#1D2788 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.0% C 0.159 H 270.2°. Best body text is #FFFFFF at 12.37:1 contrast (WCAG AA passes).

Color values

HEX	#1D2788
RGB	rgb(29, 39, 136)
HSL	hsl(234, 65%, 32%)
HSV	hsv(234, 79%, 53%)
CMYK	cmyk(78.7%, 71.3%, 0%, 46.7%)
CIE-LAB	lab(21.91, 32.04, -54.89)
CIE-LCH	lch(21.91, 63.55, 300.27°)
OKLab	oklab(33.99% 0.0007 -0.1589)
OKLCH	oklch(33.99% 0.159 270.2)
XYZ	xyz(5.6746, 3.4892, 23.6622)
Luminance	0.0349 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2788 #887E1D

analogous

#1D5C88 #1D2788 #491D88

triadic

#1D2788 #881D27 #27881D

tetradic

#1D2788 #881D5C #887E1D #1D8849

square

#1D2788 #881D5C #887E1D #1D8849

split-complementary

#1D2788 #88491D #5C881D

monochromatic

#070A23 #121956 #1D2788 #2835BA #4855D8

Accessibility & contrast

On white

12.37

#1D2788 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#1D2788 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2788

12.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2788	#FFFFFF	#000000	##FFFFFF
##1D2788	1.00	12.37	1.70	12.37
#FFFFFF	12.37	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A8B

Deuteranopia (green-blind)

#002F86

Tritanopia (blue-blind)

#004254

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1d2788;
/* rgb */ color: rgb(29, 39, 136);
/* oklch */ color: oklch(34.0% 0.159 270.2);

Tailwind

colors: {
  custom: {
    50: '#6c61ac',
    500: '#1d2788',
    950: '#000000',
  },
}

SCSS

$custom: #1d2788;
$custom-light: #6c61ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2788",
  "rgb": {
    "r": 29,
    "g": 39,
    "b": 136
  },
  "hsl": {
    "h": 234.393,
    "s": 64.848,
    "l": 32.353
  },
  "oklch": {
    "l": 0.33987,
    "c": 0.1589,
    "h": 270.2
  },
  "luminance": 0.0349
}

Semantic roles & 50–950 ramp

primary

#1D2788

secondary

#BAAF47

accent

#D840E8

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #1D2788

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

Preview Lab → · Contrast checker → · Palette generator →