#1D306A#1D306A

#1D306A is a dark, moderate blue. Relative luminance 0.034; OKLCH L 33.0% C 0.104 H 266.9°. Best body text is #FFFFFF at 12.48:1 contrast (WCAG AA passes).

Color values

HEX	#1D306A
RGB	rgb(29, 48, 106)
HSL	hsl(225, 57%, 26%)
HSV	hsv(225, 73%, 42%)
CMYK	cmyk(72.6%, 54.7%, 0%, 58.4%)
CIE-LAB	lab(21.64, 14.04, -36.23)
CIE-LCH	lch(21.64, 38.86, 291.19°)
OKLab	oklab(32.96% -0.0056 -0.1041)
OKLCH	oklch(32.96% 0.104 266.9)
XYZ	xyz(4.1643, 3.4153, 14.0726)
Luminance	0.0342 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D306A #6A571D

analogous

#1D576A #1D306A #311D6A

triadic

#1D306A #6A1D30 #306A1D

tetradic

#1D306A #6A1D57 #6A571D #1D6A31

square

#1D306A #6A1D57 #6A571D #1D6A31

split-complementary

#1D306A #6A311D #576A1D

monochromatic

#070B18 #101A3A #1D306A #2A469A #395CC9

Accessibility & contrast

On white

12.48

#1D306A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1D306A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D306A

12.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D306A	#FFFFFF	#000000	##FFFFFF
##1D306A	1.00	12.48	1.68	12.48
#FFFFFF	12.48	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B386C

Deuteranopia (green-blind)

#003169

Tritanopia (blue-blind)

#003E48

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1d306a;
/* rgb */ color: rgb(29, 48, 106);
/* oklch */ color: oklch(33.0% 0.104 266.9);

Tailwind

colors: {
  custom: {
    50: '#646795',
    500: '#1d306a',
    950: '#000000',
  },
}

SCSS

$custom: #1d306a;
$custom-light: #646795;
$custom-dark: #000000;

JSON

{
  "hex": "#1d306a",
  "rgb": {
    "r": 29,
    "g": 48,
    "b": 106
  },
  "hsl": {
    "h": 225.195,
    "s": 57.037,
    "l": 26.471
  },
  "oklch": {
    "l": 0.32955,
    "c": 0.10424,
    "h": 266.9
  },
  "luminance": 0.03416
}

Semantic roles & 50–950 ramp

primary

#1D306A

secondary

#9F8844

accent

#BB48E0

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #1D306A

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

Preview Lab → · Contrast checker → · Palette generator →