#1D348A#1D348A

#1D348A is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.6% C 0.146 H 267.1°. Best body text is #FFFFFF at 10.99:1 contrast (WCAG AA passes).

Color values

HEX	#1D348A
RGB	rgb(29, 52, 138)
HSL	hsl(227, 65%, 33%)
HSV	hsv(227, 79%, 54%)
CMYK	cmyk(79%, 62.3%, 0%, 45.9%)
CIE-LAB	lab(25.42, 24.05, -50.38)
CIE-LCH	lch(25.42, 55.82, 295.52°)
OKLab	oklab(36.62% -0.0073 -0.1456)
OKLCH	oklch(36.62% 0.146 267.1)
XYZ	xyz(6.3205, 4.5515, 24.5852)
Luminance	0.0455 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D348A #8A731D

analogous

#1D6B8A #1D348A #3C1D8A

triadic

#1D348A #8A1D34 #348A1D

tetradic

#1D348A #8A1D6B #8A731D #1D8A3C

square

#1D348A #8A1D6B #8A731D #1D8A3C

split-complementary

#1D348A #8A3C1D #6B8A1D

monochromatic

#080E25 #122157 #1D348A #2847BD #4967D9

Accessibility & contrast

On white

10.99

#1D348A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#1D348A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D348A

10.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D348A	#FFFFFF	#000000	##FFFFFF
##1D348A	1.00	10.99	1.91	10.99
#FFFFFF	10.99	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00418D

Deuteranopia (green-blind)

#003788

Tritanopia (blue-blind)

#004A59

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1d348a;
/* rgb */ color: rgb(29, 52, 138);
/* oklch */ color: oklch(36.6% 0.146 267.1);

Tailwind

colors: {
  custom: {
    50: '#6c6bad',
    500: '#1d348a',
    950: '#000000',
  },
}

SCSS

$custom: #1d348a;
$custom-light: #6c6bad;
$custom-dark: #000000;

JSON

{
  "hex": "#1d348a",
  "rgb": {
    "r": 29,
    "g": 52,
    "b": 138
  },
  "hsl": {
    "h": 227.339,
    "s": 65.269,
    "l": 32.745
  },
  "oklch": {
    "l": 0.36621,
    "c": 0.14579,
    "h": 267.1
  },
  "luminance": 0.04552
}

Semantic roles & 50–950 ramp

primary

#1D348A

secondary

#BBA348

accent

#C540E8

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #1D348A

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

Preview Lab → · Contrast checker → · Palette generator →