#1D2D81#1D2D81

#1D2D81 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.4% C 0.142 H 269.0°. Best body text is #FFFFFF at 12.04:1 contrast (WCAG AA passes).

Color values

HEX	#1D2D81
RGB	rgb(29, 45, 129)
HSL	hsl(230, 63%, 31%)
HSV	hsv(230, 78%, 51%)
CMYK	cmyk(77.5%, 65.1%, 0%, 49.4%)
CIE-LAB	lab(22.73, 25.34, -49.14)
CIE-LCH	lch(22.73, 55.29, 297.28°)
OKLab	oklab(34.38% -0.0024 -0.142)
OKLCH	oklch(34.38% 0.142 269)
XYZ	xyz(5.4062, 3.7224, 21.1982)
Luminance	0.0372 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2D81 #81711D

analogous

#1D5F81 #1D2D81 #3F1D81

triadic

#1D2D81 #811D2D #2D811D

tetradic

#1D2D81 #811D5F #81711D #1D813F

square

#1D2D81 #811D5F #81711D #1D813F

split-complementary

#1D2D81 #813F1D #5F811D

monochromatic

#070A1D #121C4F #1D2D81 #283EB3 #445BD5

Accessibility & contrast

On white

12.04

#1D2D81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#1D2D81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2D81

12.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2D81	#FFFFFF	#000000	##FFFFFF
##1D2D81	1.00	12.04	1.74	12.04
#FFFFFF	12.04	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B84

Deuteranopia (green-blind)

#00327F

Tritanopia (blue-blind)

#004352

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1d2d81;
/* rgb */ color: rgb(29, 45, 129);
/* oklch */ color: oklch(34.4% 0.142 269.0);

Tailwind

colors: {
  custom: {
    50: '#6a65a6',
    500: '#1d2d81',
    950: '#000000',
  },
}

SCSS

$custom: #1d2d81;
$custom-light: #6a65a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2d81",
  "rgb": {
    "r": 29,
    "g": 45,
    "b": 129
  },
  "hsl": {
    "h": 230.4,
    "s": 63.291,
    "l": 30.98
  },
  "oklch": {
    "l": 0.34382,
    "c": 0.14207,
    "h": 269
  },
  "luminance": 0.03723
}

Semantic roles & 50–950 ramp

primary

#1D2D81

secondary

#B4A346

accent

#CC41E6

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07050F

muted

#7A7A7F

Preview Lab

Preview with #1D2D81

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

Preview Lab → · Contrast checker → · Palette generator →