#1D368F#1D368F

#1D368F is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.5% C 0.150 H 266.7°. Best body text is #FFFFFF at 10.62:1 contrast (WCAG AA passes).

Color values

HEX	#1D368F
RGB	rgb(29, 54, 143)
HSL	hsl(227, 66%, 34%)
HSV	hsv(227, 80%, 56%)
CMYK	cmyk(79.7%, 62.2%, 0%, 43.9%)
CIE-LAB	lab(26.40, 24.65, -51.88)
CIE-LCH	lch(26.40, 57.43, 295.41°)
OKLab	oklab(37.48% -0.0086 -0.15)
OKLCH	oklch(37.48% 0.15 266.7)
XYZ	xyz(6.7821, 4.8819, 26.5661)
Luminance	0.0488 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D368F #8F761D

analogous

#1D6F8F #1D368F #3D1D8F

triadic

#1D368F #8F1D36 #368F1D

tetradic

#1D368F #8F1D6F #8F761D #1D8F3D

square

#1D368F #8F1D6F #8F761D #1D8F3D

split-complementary

#1D368F #8F3D1D #6F8F1D

monochromatic

#081029 #13235C #1D368F #2749C2 #4C6BDB

Accessibility & contrast

On white

10.62

#1D368F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#1D368F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D368F

10.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D368F	#FFFFFF	#000000	##FFFFFF
##1D368F	1.00	10.62	1.98	10.62
#FFFFFF	10.62	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004492

Deuteranopia (green-blind)

#00398D

Tritanopia (blue-blind)

#004D5D

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1d368f;
/* rgb */ color: rgb(29, 54, 143);
/* oklch */ color: oklch(37.5% 0.150 266.7);

Tailwind

colors: {
  custom: {
    50: '#6d6cb1',
    500: '#1d368f',
    950: '#000000',
  },
}

SCSS

$custom: #1d368f;
$custom-light: #6d6cb1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d368f",
  "rgb": {
    "r": 29,
    "g": 54,
    "b": 143
  },
  "hsl": {
    "h": 226.842,
    "s": 66.279,
    "l": 33.725
  },
  "oklch": {
    "l": 0.37484,
    "c": 0.15023,
    "h": 266.7
  },
  "luminance": 0.04883
}

Semantic roles & 50–950 ramp

primary

#1D368F

secondary

#BDA44B

accent

#C43FE9

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #1D368F

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

Preview Lab → · Contrast checker → · Palette generator →