#1D348F#1D348F

#1D348F is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.1% C 0.153 H 267.3°. Best body text is #FFFFFF at 10.82:1 contrast (WCAG AA passes).

Color values

HEX	#1D348F
RGB	rgb(29, 52, 143)
HSL	hsl(228, 66%, 34%)
HSV	hsv(228, 80%, 56%)
CMYK	cmyk(79.7%, 63.6%, 0%, 43.9%)
CIE-LAB	lab(25.86, 26.02, -52.75)
CIE-LCH	lch(25.86, 58.82, 296.25°)
OKLab	oklab(37.09% -0.0073 -0.1526)
OKLCH	oklch(37.09% 0.153 267.3)
XYZ	xyz(6.6909, 4.6996, 26.5358)
Luminance	0.0470 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D348F #8F781D

analogous

#1D6D8F #1D348F #3F1D8F

triadic

#1D348F #8F1D34 #348F1D

tetradic

#1D348F #8F1D6D #8F781D #1D8F3F

square

#1D348F #8F1D6D #8F781D #1D8F3F

split-complementary

#1D348F #8F3F1D #6D8F1D

monochromatic

#080F29 #13215C #1D348F #2747C2 #4C69DB

Accessibility & contrast

On white

10.82

#1D348F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#1D348F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D348F

10.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D348F	#FFFFFF	#000000	##FFFFFF
##1D348F	1.00	10.82	1.94	10.82
#FFFFFF	10.82	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004392

Deuteranopia (green-blind)

#00388D

Tritanopia (blue-blind)

#004C5C

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1d348f;
/* rgb */ color: rgb(29, 52, 143);
/* oklch */ color: oklch(37.1% 0.153 267.3);

Tailwind

colors: {
  custom: {
    50: '#6d6bb1',
    500: '#1d348f',
    950: '#000000',
  },
}

SCSS

$custom: #1d348f;
$custom-light: #6d6bb1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d348f",
  "rgb": {
    "r": 29,
    "g": 52,
    "b": 143
  },
  "hsl": {
    "h": 227.895,
    "s": 66.279,
    "l": 33.725
  },
  "oklch": {
    "l": 0.37088,
    "c": 0.15274,
    "h": 267.3
  },
  "luminance": 0.047
}

Semantic roles & 50–950 ramp

primary

#1D348F

secondary

#BDA64B

accent

#C73FE9

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1D348F

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

Preview Lab → · Contrast checker → · Palette generator →