#1D3776#1D3776

#1D3776 is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.5% C 0.113 H 264.5°. Best body text is #FFFFFF at 11.29:1 contrast (WCAG AA passes).

Color values

HEX	#1D3776
RGB	rgb(29, 55, 118)
HSL	hsl(222, 61%, 29%)
HSV	hsv(222, 75%, 46%)
CMYK	cmyk(75.4%, 53.4%, 0%, 53.7%)
CIE-LAB	lab(24.64, 13.92, -39.07)
CIE-LCH	lch(24.64, 41.47, 289.61°)
OKLab	oklab(35.53% -0.0109 -0.1123)
OKLCH	oklch(35.53% 0.113 264.5)
XYZ	xyz(5.1417, 4.3010, 17.6952)
Luminance	0.0430 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3776 #765C1D

analogous

#1D6476 #1D3776 #301D76

triadic

#1D3776 #761D37 #37761D

tetradic

#1D3776 #761D64 #765C1D #1D7630

square

#1D3776 #761D64 #765C1D #1D7630

split-complementary

#1D3776 #76301D #64761D

monochromatic

#060B19 #112045 #1D3776 #294EA7 #3E68D0

Accessibility & contrast

On white

11.29

#1D3776 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#1D3776 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3776

11.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3776	#FFFFFF	#000000	##FFFFFF
##1D3776	1.00	11.29	1.86	11.29
#FFFFFF	11.29	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F3F78

Deuteranopia (green-blind)

#003775

Tritanopia (blue-blind)

#004651

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1d3776;
/* rgb */ color: rgb(29, 55, 118);
/* oklch */ color: oklch(35.5% 0.113 264.5);

Tailwind

colors: {
  custom: {
    50: '#666d9e',
    500: '#1d3776',
    950: '#000000',
  },
}

SCSS

$custom: #1d3776;
$custom-light: #666d9e;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3776",
  "rgb": {
    "r": 29,
    "g": 55,
    "b": 118
  },
  "hsl": {
    "h": 222.472,
    "s": 60.544,
    "l": 28.824
  },
  "oklch": {
    "l": 0.35527,
    "c": 0.11285,
    "h": 264.5
  },
  "luminance": 0.04302
}

Semantic roles & 50–950 ramp

primary

#1D3776

secondary

#AA8C45

accent

#B544E4

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #1D3776

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

Preview Lab → · Contrast checker → · Palette generator →