#1D2C81#1D2C81

#1D2C81 is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.2% C 0.143 H 269.3°. Best body text is #FFFFFF at 12.14:1 contrast (WCAG AA passes).

Color values

HEX	#1D2C81
RGB	rgb(29, 44, 129)
HSL	hsl(231, 63%, 31%)
HSV	hsv(231, 78%, 51%)
CMYK	cmyk(77.5%, 65.9%, 0%, 49.4%)
CIE-LAB	lab(22.47, 26.03, -49.57)
CIE-LCH	lch(22.47, 55.99, 297.70°)
OKLab	oklab(34.19% -0.0017 -0.1433)
OKLCH	oklch(34.19% 0.143 269.3)
XYZ	xyz(5.3685, 3.6470, 21.1856)
Luminance	0.0365 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2C81 #81721D

analogous

#1D5E81 #1D2C81 #401D81

triadic

#1D2C81 #811D2C #2C811D

tetradic

#1D2C81 #811D5E #81721D #1D8140

square

#1D2C81 #811D5E #81721D #1D8140

split-complementary

#1D2C81 #81401D #5E811D

monochromatic

#070A1D #121B4F #1D2C81 #283DB3 #4459D5

Accessibility & contrast

On white

12.14

#1D2C81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#1D2C81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2C81

12.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2C81	#FFFFFF	#000000	##FFFFFF
##1D2C81	1.00	12.14	1.73	12.14
#FFFFFF	12.14	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A84

Deuteranopia (green-blind)

#00317F

Tritanopia (blue-blind)

#004252

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1d2c81;
/* rgb */ color: rgb(29, 44, 129);
/* oklch */ color: oklch(34.2% 0.143 269.3);

Tailwind

colors: {
  custom: {
    50: '#6a65a6',
    500: '#1d2c81',
    950: '#000000',
  },
}

SCSS

$custom: #1d2c81;
$custom-light: #6a65a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2c81",
  "rgb": {
    "r": 29,
    "g": 44,
    "b": 129
  },
  "hsl": {
    "h": 231,
    "s": 63.291,
    "l": 30.98
  },
  "oklch": {
    "l": 0.34188,
    "c": 0.14333,
    "h": 269.3
  },
  "luminance": 0.03648
}

Semantic roles & 50–950 ramp

primary

#1D2C81

secondary

#B4A446

accent

#CE41E6

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07050F

muted

#7A7A7F

Preview Lab

Preview with #1D2C81

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

Preview Lab → · Contrast checker → · Palette generator →