#1D3976#1D3976

#1D3976 is a dark, moderate blue. Relative luminance 0.045; OKLCH L 36.0% C 0.110 H 263.4°. Best body text is #FFFFFF at 11.06:1 contrast (WCAG AA passes).

Color values

HEX	#1D3976
RGB	rgb(29, 57, 118)
HSL	hsl(221, 61%, 29%)
HSV	hsv(221, 75%, 46%)
CMYK	cmyk(75.4%, 51.7%, 0%, 53.7%)
CIE-LAB	lab(25.24, 12.50, -38.10)
CIE-LCH	lch(25.24, 40.10, 288.17°)
OKLab	oklab(35.99% -0.0127 -0.1094)
OKLCH	oklch(35.99% 0.11 263.4)
XYZ	xyz(5.2387, 4.4949, 17.7275)
Luminance	0.0449 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3976 #765A1D

analogous

#1D6676 #1D3976 #2E1D76

triadic

#1D3976 #761D39 #39761D

tetradic

#1D3976 #761D66 #765A1D #1D762E

square

#1D3976 #761D66 #765A1D #1D762E

split-complementary

#1D3976 #762E1D #66761D

monochromatic

#060C19 #112145 #1D3976 #2951A7 #3E6CD0

Accessibility & contrast

On white

11.06

#1D3976 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#1D3976 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3976

11.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3976	#FFFFFF	#000000	##FFFFFF
##1D3976	1.00	11.06	1.90	11.06
#FFFFFF	11.06	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#164078

Deuteranopia (green-blind)

#003875

Tritanopia (blue-blind)

#004752

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1d3976;
/* rgb */ color: rgb(29, 57, 118);
/* oklch */ color: oklch(36.0% 0.110 263.4);

Tailwind

colors: {
  custom: {
    50: '#666e9e',
    500: '#1d3976',
    950: '#000000',
  },
}

SCSS

$custom: #1d3976;
$custom-light: #666e9e;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3976",
  "rgb": {
    "r": 29,
    "g": 57,
    "b": 118
  },
  "hsl": {
    "h": 221.124,
    "s": 60.544,
    "l": 28.824
  },
  "oklch": {
    "l": 0.35985,
    "c": 0.11016,
    "h": 263.4
  },
  "luminance": 0.04495
}

Semantic roles & 50–950 ramp

primary

#1D3976

secondary

#AA8A45

accent

#B144E4

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #1D3976

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

Preview Lab → · Contrast checker → · Palette generator →