#1D3390#1D3390

#1D3390 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.0% C 0.155 H 267.5°. Best body text is #FFFFFF at 10.89:1 contrast (WCAG AA passes).

Color values

HEX	#1D3390
RGB	rgb(29, 51, 144)
HSL	hsl(229, 66%, 34%)
HSV	hsv(229, 80%, 56%)
CMYK	cmyk(79.9%, 64.6%, 0%, 43.5%)
CIE-LAB	lab(25.69, 27.09, -53.65)
CIE-LCH	lch(25.69, 60.10, 296.79°)
OKLab	oklab(36.99% -0.0067 -0.1552)
OKLCH	oklch(36.99% 0.155 267.5)
XYZ	xyz(6.7228, 4.6417, 26.9218)
Luminance	0.0464 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3390 #907A1D

analogous

#1D6D90 #1D3390 #411D90

triadic

#1D3390 #901D33 #33901D

tetradic

#1D3390 #901D6D #907A1D #1D9041

square

#1D3390 #901D6D #907A1D #1D9041

split-complementary

#1D3390 #90411D #6D901D

monochromatic

#080F2A #13215D #1D3390 #2745C3 #4C68DB

Accessibility & contrast

On white

10.89

#1D3390 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#1D3390 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3390

10.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3390	#FFFFFF	#000000	##FFFFFF
##1D3390	1.00	10.89	1.93	10.89
#FFFFFF	10.89	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004293

Deuteranopia (green-blind)

#00388E

Tritanopia (blue-blind)

#004B5C

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1d3390;
/* rgb */ color: rgb(29, 51, 144);
/* oklch */ color: oklch(37.0% 0.155 267.5);

Tailwind

colors: {
  custom: {
    50: '#6d6ab1',
    500: '#1d3390',
    950: '#000000',
  },
}

SCSS

$custom: #1d3390;
$custom-light: #6d6ab1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3390",
  "rgb": {
    "r": 29,
    "g": 51,
    "b": 144
  },
  "hsl": {
    "h": 228.522,
    "s": 66.474,
    "l": 33.922
  },
  "oklch": {
    "l": 0.36988,
    "c": 0.15536,
    "h": 267.5
  },
  "luminance": 0.04642
}

Semantic roles & 50–950 ramp

primary

#1D3390

secondary

#BDA84B

accent

#C93EE9

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1D3390

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

Preview Lab → · Contrast checker → · Palette generator →