#1D3E90#1D3E90

#1D3E90 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.2% C 0.141 H 264.3°. Best body text is #FFFFFF at 9.79:1 contrast (WCAG AA passes).

Color values

HEX	#1D3E90
RGB	rgb(29, 62, 144)
HSL	hsl(223, 66%, 34%)
HSV	hsv(223, 80%, 56%)
CMYK	cmyk(79.9%, 56.9%, 0%, 43.5%)
CIE-LAB	lab(28.69, 19.52, -48.75)
CIE-LCH	lch(28.69, 52.51, 291.82°)
OKLab	oklab(39.23% -0.0141 -0.1407)
OKLCH	oklch(39.23% 0.141 264.3)
XYZ	xyz(7.2616, 5.7192, 27.1014)
Luminance	0.0572 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3E90 #906F1D

analogous

#1D7890 #1D3E90 #361D90

triadic

#1D3E90 #901D3E #3E901D

tetradic

#1D3E90 #901D78 #906F1D #1D9036

square

#1D3E90 #901D78 #906F1D #1D9036

split-complementary

#1D3E90 #90361D #78901D

monochromatic

#08122A #13285D #1D3E90 #2754C3 #4C75DB

Accessibility & contrast

On white

9.79

#1D3E90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#1D3E90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3E90

9.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3E90	#FFFFFF	#000000	##FFFFFF
##1D3E90	1.00	9.79	2.14	9.79
#FFFFFF	9.79	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004993

Deuteranopia (green-blind)

#003F8E

Tritanopia (blue-blind)

#005260

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1d3e90;
/* rgb */ color: rgb(29, 62, 144);
/* oklch */ color: oklch(39.2% 0.141 264.3);

Tailwind

colors: {
  custom: {
    50: '#6c72b1',
    500: '#1d3e90',
    950: '#000000',
  },
}

SCSS

$custom: #1d3e90;
$custom-light: #6c72b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3e90",
  "rgb": {
    "r": 29,
    "g": 62,
    "b": 144
  },
  "hsl": {
    "h": 222.783,
    "s": 66.474,
    "l": 33.922
  },
  "oklch": {
    "l": 0.39231,
    "c": 0.14138,
    "h": 264.3
  },
  "luminance": 0.0572
}

Semantic roles & 50–950 ramp

primary

#1D3E90

secondary

#BD9D4B

accent

#B83EE9

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1D3E90

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

Preview Lab → · Contrast checker → · Palette generator →