#1D3382#1D3382

#1D3382 is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.7% C 0.136 H 267.2°. Best body text is #FFFFFF at 11.36:1 contrast (WCAG AA passes).

Color values

HEX	#1D3382
RGB	rgb(29, 51, 130)
HSL	hsl(227, 64%, 31%)
HSV	hsv(227, 78%, 51%)
CMYK	cmyk(77.7%, 60.8%, 0%, 49%)
CIE-LAB	lab(24.45, 21.57, -46.96)
CIE-LCH	lch(24.45, 51.68, 294.67°)
OKLab	oklab(35.68% -0.0067 -0.1356)
OKLCH	oklch(35.68% 0.136 267.2)
XYZ	xyz(5.7184, 4.2399, 21.6318)
Luminance	0.0424 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3382 #826C1D

analogous

#1D6582 #1D3382 #391D82

triadic

#1D3382 #821D33 #33821D

tetradic

#1D3382 #821D65 #826C1D #1D8239

square

#1D3382 #821D65 #826C1D #1D8239

split-complementary

#1D3382 #82391D #65821D

monochromatic

#070C1E #121F50 #1D3382 #2847B4 #4464D5

Accessibility & contrast

On white

11.36

#1D3382 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#1D3382 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3382

11.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3382	#FFFFFF	#000000	##FFFFFF
##1D3382	1.00	11.36	1.85	11.36
#FFFFFF	11.36	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F85

Deuteranopia (green-blind)

#003680

Tritanopia (blue-blind)

#004755

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1d3382;
/* rgb */ color: rgb(29, 51, 130);
/* oklch */ color: oklch(35.7% 0.136 267.2);

Tailwind

colors: {
  custom: {
    50: '#6a6aa7',
    500: '#1d3382',
    950: '#000000',
  },
}

SCSS

$custom: #1d3382;
$custom-light: #6a6aa7;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3382",
  "rgb": {
    "r": 29,
    "g": 51,
    "b": 130
  },
  "hsl": {
    "h": 226.931,
    "s": 63.522,
    "l": 31.176
  },
  "oklch": {
    "l": 0.35684,
    "c": 0.13576,
    "h": 267.2
  },
  "luminance": 0.04241
}

Semantic roles & 50–950 ramp

primary

#1D3382

secondary

#B59D46

accent

#C341E7

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1D3382

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

Preview Lab → · Contrast checker → · Palette generator →