#1D3D9D#1D3D9D

#1D3D9D is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.2% C 0.161 H 265.4°. Best body text is #FFFFFF at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#1D3D9D
RGB	rgb(29, 61, 157)
HSL	hsl(225, 69%, 36%)
HSV	hsv(225, 82%, 62%)
CMYK	cmyk(81.5%, 61.1%, 0%, 38.4%)
CIE-LAB	lab(29.49, 25.37, -55.39)
CIE-LCH	lch(29.49, 60.92, 294.61°)
OKLab	oklab(40.17% -0.0129 -0.1602)
OKLCH	oklch(40.17% 0.161 265.4)
XYZ	xyz(8.2591, 6.0320, 32.6208)
Luminance	0.0603 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3D9D #9D7D1D

analogous

#1D7D9D #1D3D9D #3D1D9D

triadic

#1D3D9D #9D1D3D #3D9D1D

tetradic

#1D3D9D #9D1D7D #9D7D1D #1D9D3D

square

#1D3D9D #9D1D7D #9D7D1D #1D9D3D

split-complementary

#1D3D9D #9D3D1D #7D9D1D

monochromatic

#0A1536 #132969 #1D3D9D #2751D1 #5578E0

Accessibility & contrast

On white

9.52

#1D3D9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#1D3D9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3D9D

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3D9D	#FFFFFF	#000000	##FFFFFF
##1D3D9D	1.00	9.52	2.21	9.52
#FFFFFF	9.52	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA0

Deuteranopia (green-blind)

#00409B

Tritanopia (blue-blind)

#005667

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1d3d9d;
/* rgb */ color: rgb(29, 61, 157);
/* oklch */ color: oklch(40.2% 0.161 265.4);

Tailwind

colors: {
  custom: {
    50: '#7072bb',
    500: '#1d3d9d',
    950: '#000000',
  },
}

SCSS

$custom: #1d3d9d;
$custom-light: #7072bb;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3d9d",
  "rgb": {
    "r": 29,
    "g": 61,
    "b": 157
  },
  "hsl": {
    "h": 225,
    "s": 68.817,
    "l": 36.471
  },
  "oklch": {
    "l": 0.40167,
    "c": 0.1607,
    "h": 265.4
  },
  "luminance": 0.06033
}

Semantic roles & 50–950 ramp

primary

#1D3D9D

secondary

#C3A753

accent

#C03CEC

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1D3D9D

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

Preview Lab → · Contrast checker → · Palette generator →