#1D3280#1D3280

#1D3280 is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.3% C 0.134 H 267.4°. Best body text is #FFFFFF at 11.54:1 contrast (WCAG AA passes).

Color values

HEX	#1D3280
RGB	rgb(29, 50, 128)
HSL	hsl(227, 63%, 31%)
HSV	hsv(227, 77%, 50%)
CMYK	cmyk(77.3%, 60.9%, 0%, 49.8%)
CIE-LAB	lab(24.00, 21.47, -46.44)
CIE-LCH	lch(24.00, 51.16, 294.82°)
OKLab	oklab(35.3% -0.006 -0.1341)
OKLCH	oklch(35.3% 0.134 267.4)
XYZ	xyz(5.5422, 4.1003, 20.9172)
Luminance	0.0410 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3280 #806B1D

analogous

#1D6380 #1D3280 #391D80

triadic

#1D3280 #801D32 #32801D

tetradic

#1D3280 #801D63 #806B1D #1D8039

square

#1D3280 #801D63 #806B1D #1D8039

split-complementary

#1D3280 #80391D #63801D

monochromatic

#060B1C #121F4E #1D3280 #2845B2 #4362D4

Accessibility & contrast

On white

11.54

#1D3280 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#1D3280 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3280

11.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3280	#FFFFFF	#000000	##FFFFFF
##1D3280	1.00	11.54	1.82	11.54
#FFFFFF	11.54	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E83

Deuteranopia (green-blind)

#00357E

Tritanopia (blue-blind)

#004654

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1d3280;
/* rgb */ color: rgb(29, 50, 128);
/* oklch */ color: oklch(35.3% 0.134 267.4);

Tailwind

colors: {
  custom: {
    50: '#6969a6',
    500: '#1d3280',
    950: '#000000',
  },
}

SCSS

$custom: #1d3280;
$custom-light: #6969a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3280",
  "rgb": {
    "r": 29,
    "g": 50,
    "b": 128
  },
  "hsl": {
    "h": 227.273,
    "s": 63.057,
    "l": 30.784
  },
  "oklch": {
    "l": 0.35296,
    "c": 0.13419,
    "h": 267.4
  },
  "luminance": 0.04101
}

Semantic roles & 50–950 ramp

primary

#1D3280

secondary

#B39C45

accent

#C342E6

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1D3280

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

Preview Lab → · Contrast checker → · Palette generator →