#1D2883#1D2883

#1D2883 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.6% C 0.151 H 270.2°. Best body text is #FFFFFF at 12.47:1 contrast (WCAG AA passes).

Color values

HEX	#1D2883
RGB	rgb(29, 40, 131)
HSL	hsl(234, 64%, 31%)
HSV	hsv(234, 78%, 51%)
CMYK	cmyk(77.9%, 69.5%, 0%, 48.6%)
CIE-LAB	lab(21.64, 29.50, -52.18)
CIE-LCH	lch(21.64, 59.95, 299.48°)
OKLab	oklab(33.64% 0.0006 -0.151)
OKLCH	oklch(33.64% 0.151 270.2)
XYZ	xyz(5.3608, 3.4169, 21.8453)
Luminance	0.0342 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2883 #83781D

analogous

#1D5B83 #1D2883 #451D83

triadic

#1D2883 #831D28 #28831D

tetradic

#1D2883 #831D5B #83781D #1D8345

square

#1D2883 #831D5B #83781D #1D8345

split-complementary

#1D2883 #83451D #5B831D

monochromatic

#07091F #121951 #1D2883 #2837B5 #4554D6

Accessibility & contrast

On white

12.47

#1D2883 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1D2883 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2883

12.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2883	#FFFFFF	#000000	##FFFFFF
##1D2883	1.00	12.47	1.68	12.47
#FFFFFF	12.47	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003986

Deuteranopia (green-blind)

#002F81

Tritanopia (blue-blind)

#004152

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1d2883;
/* rgb */ color: rgb(29, 40, 131);
/* oklch */ color: oklch(33.6% 0.151 270.2);

Tailwind

colors: {
  custom: {
    50: '#6b62a8',
    500: '#1d2883',
    950: '#000000',
  },
}

SCSS

$custom: #1d2883;
$custom-light: #6b62a8;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2883",
  "rgb": {
    "r": 29,
    "g": 40,
    "b": 131
  },
  "hsl": {
    "h": 233.529,
    "s": 63.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.33643,
    "c": 0.151,
    "h": 270.2
  },
  "luminance": 0.03417
}

Semantic roles & 50–950 ramp

primary

#1D2883

secondary

#B6AA46

accent

#D541E7

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#080510

muted

#7A797F

Preview Lab

Preview with #1D2883

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

Preview Lab → · Contrast checker → · Palette generator →