#1D3763#1D3763

#1D3763 is a dark, moderate blue. Relative luminance 0.039; OKLCH L 34.1% C 0.084 H 260.3°. Best body text is #FFFFFF at 11.81:1 contrast (WCAG AA passes).

Color values

HEX	#1D3763
RGB	rgb(29, 55, 99)
HSL	hsl(218, 55%, 25%)
HSV	hsv(218, 71%, 39%)
CMYK	cmyk(70.7%, 44.4%, 0%, 61.2%)
CIE-LAB	lab(23.32, 6.23, -28.99)
CIE-LCH	lch(23.32, 29.65, 282.12°)
OKLab	oklab(34.09% -0.0142 -0.0827)
OKLCH	oklch(34.09% 0.084 260.3)
XYZ	xyz(4.1242, 3.8940, 12.3362)
Luminance	0.0389 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3763 #63491D

analogous

#1D5A63 #1D3763 #261D63

triadic

#1D3763 #631D37 #37631D

tetradic

#1D3763 #631D5A #63491D #1D6326

square

#1D3763 #631D5A #63491D #1D6326

split-complementary

#1D3763 #63261D #5A631D

monochromatic

#070D18 #0F1D34 #1D3763 #2B5192 #396CC2

Accessibility & contrast

On white

11.81

#1D3763 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#1D3763 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3763

11.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3763	#FFFFFF	#000000	##FFFFFF
##1D3763	1.00	11.81	1.78	11.81
#FFFFFF	11.81	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#233B65

Deuteranopia (green-blind)

#183562

Tritanopia (blue-blind)

#004148

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1d3763;
/* rgb */ color: rgb(29, 55, 99);
/* oklch */ color: oklch(34.1% 0.084 260.3);

Tailwind

colors: {
  custom: {
    50: '#626d90',
    500: '#1d3763',
    950: '#000000',
  },
}

SCSS

$custom: #1d3763;
$custom-light: #626d90;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3763",
  "rgb": {
    "r": 29,
    "g": 55,
    "b": 99
  },
  "hsl": {
    "h": 217.714,
    "s": 54.688,
    "l": 25.098
  },
  "oklch": {
    "l": 0.34085,
    "c": 0.08388,
    "h": 260.3
  },
  "luminance": 0.03894
}

Semantic roles & 50–950 ramp

primary

#1D3763

secondary

#987944

accent

#A74ADE

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#05070C

muted

#7A7A7D

Preview Lab

Preview with #1D3763

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

Preview Lab → · Contrast checker → · Palette generator →