#1D368A#1D368A

#1D368A is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.0% C 0.143 H 266.5°. Best body text is #FFFFFF at 10.79:1 contrast (WCAG AA passes).

Color values

HEX	#1D368A
RGB	rgb(29, 54, 138)
HSL	hsl(226, 65%, 33%)
HSV	hsv(226, 79%, 54%)
CMYK	cmyk(79%, 60.9%, 0%, 45.9%)
CIE-LAB	lab(25.96, 22.67, -49.49)
CIE-LCH	lch(25.96, 54.43, 294.61°)
OKLab	oklab(37.03% -0.0087 -0.143)
OKLCH	oklch(37.03% 0.143 266.5)
XYZ	xyz(6.4117, 4.7338, 24.6156)
Luminance	0.0474 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D368A #8A711D

analogous

#1D6C8A #1D368A #3B1D8A

triadic

#1D368A #8A1D36 #368A1D

tetradic

#1D368A #8A1D6C #8A711D #1D8A3B

square

#1D368A #8A1D6C #8A711D #1D8A3B

split-complementary

#1D368A #8A3B1D #6C8A1D

monochromatic

#080E25 #122257 #1D368A #284ABD #496AD9

Accessibility & contrast

On white

10.79

#1D368A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#1D368A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D368A

10.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D368A	#FFFFFF	#000000	##FFFFFF
##1D368A	1.00	10.79	1.95	10.79
#FFFFFF	10.79	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438D

Deuteranopia (green-blind)

#003988

Tritanopia (blue-blind)

#004B5A

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1d368a;
/* rgb */ color: rgb(29, 54, 138);
/* oklch */ color: oklch(37.0% 0.143 266.5);

Tailwind

colors: {
  custom: {
    50: '#6b6cad',
    500: '#1d368a',
    950: '#000000',
  },
}

SCSS

$custom: #1d368a;
$custom-light: #6b6cad;
$custom-dark: #000000;

JSON

{
  "hex": "#1d368a",
  "rgb": {
    "r": 29,
    "g": 54,
    "b": 138
  },
  "hsl": {
    "h": 226.239,
    "s": 65.269,
    "l": 32.745
  },
  "oklch": {
    "l": 0.37027,
    "c": 0.14322,
    "h": 266.5
  },
  "luminance": 0.04735
}

Semantic roles & 50–950 ramp

primary

#1D368A

secondary

#BBA048

accent

#C240E8

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #1D368A

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

Preview Lab → · Contrast checker → · Palette generator →