#1D3D7E#1D3D7E

#1D3D7E is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.5% C 0.117 H 262.5°. Best body text is #FFFFFF at 10.39:1 contrast (WCAG AA passes).

Color values

HEX	#1D3D7E
RGB	rgb(29, 61, 126)
HSL	hsl(220, 63%, 30%)
HSV	hsv(220, 77%, 49%)
CMYK	cmyk(77%, 51.6%, 0%, 50.6%)
CIE-LAB	lab(27.03, 12.95, -40.27)
CIE-LCH	lch(27.03, 42.30, 287.82°)
OKLab	oklab(37.54% -0.0152 -0.1157)
OKLCH	oklch(37.54% 0.117 262.5)
XYZ	xyz(5.9400, 5.1044, 20.4068)
Luminance	0.0510 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3D7E #7E5E1D

analogous

#1D6D7E #1D3D7E #2D1D7E

triadic

#1D3D7E #7E1D3D #3D7E1D

tetradic

#1D3D7E #7E1D6D #7E5E1D #1D7E2D

square

#1D3D7E #7E1D6D #7E5E1D #1D7E2D

split-complementary

#1D3D7E #7E2D1D #6D7E1D

monochromatic

#060D1B #12254C #1D3D7E #2855B0 #4272D3

Accessibility & contrast

On white

10.39

#1D3D7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#1D3D7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3D7E

10.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3D7E	#FFFFFF	#000000	##FFFFFF
##1D3D7E	1.00	10.39	2.02	10.39
#FFFFFF	10.39	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#164580

Deuteranopia (green-blind)

#003C7D

Tritanopia (blue-blind)

#004D57

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1d3d7e;
/* rgb */ color: rgb(29, 61, 126);
/* oklch */ color: oklch(37.5% 0.117 262.5);

Tailwind

colors: {
  custom: {
    50: '#6872a4',
    500: '#1d3d7e',
    950: '#000000',
  },
}

SCSS

$custom: #1d3d7e;
$custom-light: #6872a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3d7e",
  "rgb": {
    "r": 29,
    "g": 61,
    "b": 126
  },
  "hsl": {
    "h": 220.206,
    "s": 62.581,
    "l": 30.392
  },
  "oklch": {
    "l": 0.37535,
    "c": 0.11672,
    "h": 262.5
  },
  "luminance": 0.05105
}

Semantic roles & 50–950 ramp

primary

#1D3D7E

secondary

#B18E45

accent

#B042E6

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1D3D7E

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

Preview Lab → · Contrast checker → · Palette generator →