#1D345A#1D345A

#1D345A is a dark, moderate blue. Relative luminance 0.035; OKLCH L 32.7% C 0.074 H 259.9°. Best body text is #FFFFFF at 12.42:1 contrast (WCAG AA passes).

Color values

HEX	#1D345A
RGB	rgb(29, 52, 90)
HSL	hsl(217, 51%, 23%)
HSV	hsv(217, 68%, 35%)
CMYK	cmyk(67.8%, 42.2%, 0%, 64.7%)
CIE-LAB	lab(21.78, 4.75, -25.54)
CIE-LCH	lch(21.78, 25.98, 280.53°)
OKLab	oklab(32.71% -0.0129 -0.0726)
OKLCH	oklch(32.71% 0.074 259.9)
XYZ	xyz(3.5795, 3.4550, 10.1491)
Luminance	0.0345 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D345A #5A431D

analogous

#1D525A #1D345A #241D5A

triadic

#1D345A #5A1D34 #345A1D

tetradic

#1D345A #5A1D52 #5A431D #1D5A24

square

#1D345A #5A1D52 #5A431D #1D5A24

split-complementary

#1D345A #5A241D #525A1D

monochromatic

#070D17 #0E192C #1D345A #2C4F88 #3B69B7

Accessibility & contrast

On white

12.42

#1D345A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#1D345A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D345A

12.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D345A	#FFFFFF	#000000	##FFFFFF
##1D345A	1.00	12.42	1.69	12.42
#FFFFFF	12.42	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#23375C

Deuteranopia (green-blind)

#1B3259

Tritanopia (blue-blind)

#003D42

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1d345a;
/* rgb */ color: rgb(29, 52, 90);
/* oklch */ color: oklch(32.7% 0.074 259.9);

Tailwind

colors: {
  custom: {
    50: '#606b89',
    500: '#1d345a',
    950: '#000000',
  },
}

SCSS

$custom: #1d345a;
$custom-light: #606b89;
$custom-dark: #000000;

JSON

{
  "hex": "#1d345a",
  "rgb": {
    "r": 29,
    "g": 52,
    "b": 90
  },
  "hsl": {
    "h": 217.377,
    "s": 51.261,
    "l": 23.333
  },
  "oklch": {
    "l": 0.3271,
    "c": 0.07375,
    "h": 259.9
  },
  "luminance": 0.03455
}

Semantic roles & 50–950 ramp

primary

#1D345A

secondary

#8F7344

accent

#A54DDB

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05060B

muted

#797A7C

Preview Lab

Preview with #1D345A

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

Preview Lab → · Contrast checker → · Palette generator →