#1D3D76#1D3D76

#1D3D76 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 36.9% C 0.105 H 260.9°. Best body text is #FFFFFF at 10.60:1 contrast (WCAG AA passes).

Color values

HEX	#1D3D76
RGB	rgb(29, 61, 118)
HSL	hsl(218, 61%, 29%)
HSV	hsv(218, 75%, 46%)
CMYK	cmyk(75.4%, 48.3%, 0%, 53.7%)
CIE-LAB	lab(26.47, 9.70, -36.13)
CIE-LCH	lch(26.47, 37.41, 285.02°)
OKLab	oklab(36.92% -0.0165 -0.1036)
OKLCH	oklch(36.92% 0.105 260.9)
XYZ	xyz(5.4443, 4.9061, 17.7961)
Luminance	0.0491 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3D76 #76561D

analogous

#1D6A76 #1D3D76 #2A1D76

triadic

#1D3D76 #761D3D #3D761D

tetradic

#1D3D76 #761D6A #76561D #1D762A

square

#1D3D76 #761D6A #76561D #1D762A

split-complementary

#1D3D76 #762A1D #6A761D

monochromatic

#060D19 #112445 #1D3D76 #2956A7 #3E72D0

Accessibility & contrast

On white

10.60

#1D3D76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#1D3D76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3D76

10.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3D76	#FFFFFF	#000000	##FFFFFF
##1D3D76	1.00	10.60	1.98	10.60
#FFFFFF	10.60	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F4378

Deuteranopia (green-blind)

#0B3B75

Tritanopia (blue-blind)

#004A53

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1d3d76;
/* rgb */ color: rgb(29, 61, 118);
/* oklch */ color: oklch(36.9% 0.105 260.9);

Tailwind

colors: {
  custom: {
    50: '#66729e',
    500: '#1d3d76',
    950: '#000000',
  },
}

SCSS

$custom: #1d3d76;
$custom-light: #66729e;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3d76",
  "rgb": {
    "r": 29,
    "g": 61,
    "b": 118
  },
  "hsl": {
    "h": 218.427,
    "s": 60.544,
    "l": 28.824
  },
  "oklch": {
    "l": 0.36921,
    "c": 0.10488,
    "h": 260.9
  },
  "luminance": 0.04907
}

Semantic roles & 50–950 ramp

primary

#1D3D76

secondary

#AA8645

accent

#AA44E4

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #1D3D76

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

Preview Lab → · Contrast checker → · Palette generator →