#1D389A#1D389A

#1D389A is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.9% C 0.163 H 266.5°. Best body text is #FFFFFF at 10.07:1 contrast (WCAG AA passes).

Color values

HEX	#1D389A
RGB	rgb(29, 56, 154)
HSL	hsl(227, 68%, 36%)
HSV	hsv(227, 81%, 60%)
CMYK	cmyk(81.2%, 63.6%, 0%, 39.6%)
CIE-LAB	lab(27.90, 27.59, -56.16)
CIE-LCH	lch(27.90, 62.57, 296.16°)
OKLab	oklab(38.91% -0.0099 -0.1625)
OKLCH	oklch(38.91% 0.163 266.5)
XYZ	xyz(7.7516, 5.4217, 31.2035)
Luminance	0.0542 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D389A #9A7F1D

analogous

#1D769A #1D389A #401D9A

triadic

#1D389A #9A1D38 #389A1D

tetradic

#1D389A #9A1D76 #9A7F1D #1D9A40

square

#1D389A #9A1D76 #9A7F1D #1D9A40

split-complementary

#1D389A #9A401D #769A1D

monochromatic

#0A1333 #132566 #1D389A #274BCE #5371DF

Accessibility & contrast

On white

10.07

#1D389A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#1D389A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D389A

10.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D389A	#FFFFFF	#000000	##FFFFFF
##1D389A	1.00	10.07	2.08	10.07
#FFFFFF	10.07	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00489D

Deuteranopia (green-blind)

#003C98

Tritanopia (blue-blind)

#005263

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1d389a;
/* rgb */ color: rgb(29, 56, 154);
/* oklch */ color: oklch(38.9% 0.163 266.5);

Tailwind

colors: {
  custom: {
    50: '#6f6eb9',
    500: '#1d389a',
    950: '#000000',
  },
}

SCSS

$custom: #1d389a;
$custom-light: #6f6eb9;
$custom-dark: #000000;

JSON

{
  "hex": "#1d389a",
  "rgb": {
    "r": 29,
    "g": 56,
    "b": 154
  },
  "hsl": {
    "h": 227.04,
    "s": 68.306,
    "l": 35.882
  },
  "oklch": {
    "l": 0.38905,
    "c": 0.16281,
    "h": 266.5
  },
  "luminance": 0.05423
}

Semantic roles & 50–950 ramp

primary

#1D389A

secondary

#C2A951

accent

#C53DEB

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #1D389A

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

Preview Lab → · Contrast checker → · Palette generator →