#1D3D90#1D3D90

#1D3D90 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.0% C 0.143 H 264.6°. Best body text is #FFFFFF at 9.89:1 contrast (WCAG AA passes).

Color values

HEX	#1D3D90
RGB	rgb(29, 61, 144)
HSL	hsl(223, 66%, 34%)
HSV	hsv(223, 80%, 56%)
CMYK	cmyk(79.9%, 57.6%, 0%, 43.5%)
CIE-LAB	lab(28.41, 20.21, -49.21)
CIE-LCH	lch(28.41, 53.20, 292.33°)
OKLab	oklab(39.02% -0.0134 -0.142)
OKLCH	oklch(39.02% 0.143 264.6)
XYZ	xyz(7.2077, 5.6115, 27.0834)
Luminance	0.0561 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3D90 #90701D

analogous

#1D7790 #1D3D90 #371D90

triadic

#1D3D90 #901D3D #3D901D

tetradic

#1D3D90 #901D77 #90701D #1D9037

square

#1D3D90 #901D77 #90701D #1D9037

split-complementary

#1D3D90 #90371D #77901D

monochromatic

#08122A #13275D #1D3D90 #2753C3 #4C74DB

Accessibility & contrast

On white

9.89

#1D3D90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#1D3D90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3D90

9.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3D90	#FFFFFF	#000000	##FFFFFF
##1D3D90	1.00	9.89	2.12	9.89
#FFFFFF	9.89	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004993

Deuteranopia (green-blind)

#003E8E

Tritanopia (blue-blind)

#005260

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1d3d90;
/* rgb */ color: rgb(29, 61, 144);
/* oklch */ color: oklch(39.0% 0.143 264.6);

Tailwind

colors: {
  custom: {
    50: '#6c72b1',
    500: '#1d3d90',
    950: '#000000',
  },
}

SCSS

$custom: #1d3d90;
$custom-light: #6c72b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3d90",
  "rgb": {
    "r": 29,
    "g": 61,
    "b": 144
  },
  "hsl": {
    "h": 223.304,
    "s": 66.474,
    "l": 33.922
  },
  "oklch": {
    "l": 0.39018,
    "c": 0.14266,
    "h": 264.6
  },
  "luminance": 0.05612
}

Semantic roles & 50–950 ramp

primary

#1D3D90

secondary

#BD9E4B

accent

#BA3EE9

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #1D3D90

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

Preview Lab → · Contrast checker → · Palette generator →