#1D3475#1D3475

#1D3475 is a dark, moderate blue. Relative luminance 0.040; OKLCH L 34.8% C 0.115 H 265.9°. Best body text is #FFFFFF at 11.66:1 contrast (WCAG AA passes).

Color values

HEX	#1D3475
RGB	rgb(29, 52, 117)
HSL	hsl(224, 60%, 29%)
HSV	hsv(224, 75%, 46%)
CMYK	cmyk(75.2%, 55.6%, 0%, 54.1%)
CIE-LAB	lab(23.67, 15.64, -40.00)
CIE-LCH	lch(23.67, 42.95, 291.35°)
OKLab	oklab(34.77% -0.0083 -0.1151)
OKLCH	oklch(34.77% 0.115 265.9)
XYZ	xyz(4.9444, 4.0010, 17.3379)
Luminance	0.0400 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3475 #755E1D

analogous

#1D6075 #1D3475 #321D75

triadic

#1D3475 #751D34 #34751D

tetradic

#1D3475 #751D60 #755E1D #1D7532

square

#1D3475 #751D60 #755E1D #1D7532

split-complementary

#1D3475 #75321D #60751D

monochromatic

#060B19 #111E44 #1D3475 #294AA6 #3D63CF

Accessibility & contrast

On white

11.66

#1D3475 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#1D3475 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3475

11.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3475	#FFFFFF	#000000	##FFFFFF
##1D3475	1.00	11.66	1.80	11.66
#FFFFFF	11.66	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#053D77

Deuteranopia (green-blind)

#003574

Tritanopia (blue-blind)

#00444F

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1d3475;
/* rgb */ color: rgb(29, 52, 117);
/* oklch */ color: oklch(34.8% 0.115 265.9);

Tailwind

colors: {
  custom: {
    50: '#666b9d',
    500: '#1d3475',
    950: '#000000',
  },
}

SCSS

$custom: #1d3475;
$custom-light: #666b9d;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3475",
  "rgb": {
    "r": 29,
    "g": 52,
    "b": 117
  },
  "hsl": {
    "h": 224.318,
    "s": 60.274,
    "l": 28.627
  },
  "oklch": {
    "l": 0.34768,
    "c": 0.11541,
    "h": 265.9
  },
  "luminance": 0.04002
}

Semantic roles & 50–950 ramp

primary

#1D3475

secondary

#A98F45

accent

#BA44E3

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #1D3475

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

Preview Lab → · Contrast checker → · Palette generator →