#1D389D#1D389D

#1D389D is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.2% C 0.167 H 266.6°. Best body text is #FFFFFF at 9.98:1 contrast (WCAG AA passes).

Color values

HEX	#1D389D
RGB	rgb(29, 56, 157)
HSL	hsl(227, 69%, 36%)
HSV	hsv(227, 82%, 62%)
CMYK	cmyk(81.5%, 64.3%, 0%, 38.4%)
CIE-LAB	lab(28.18, 28.75, -57.55)
CIE-LCH	lch(28.18, 64.33, 296.55°)
OKLab	oklab(39.19% -0.0099 -0.1666)
OKLCH	oklch(39.19% 0.167 266.6)
XYZ	xyz(8.0045, 5.5229, 32.5359)
Luminance	0.0552 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D389D #9D821D

analogous

#1D789D #1D389D #421D9D

triadic

#1D389D #9D1D38 #389D1D

tetradic

#1D389D #9D1D78 #9D821D #1D9D42

square

#1D389D #9D1D78 #9D821D #1D9D42

split-complementary

#1D389D #9D421D #789D1D

monochromatic

#0A1336 #132669 #1D389D #274AD1 #5572E0

Accessibility & contrast

On white

9.98

#1D389D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#1D389D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D389D

9.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D389D	#FFFFFF	#000000	##FFFFFF
##1D389D	1.00	9.98	2.10	9.98
#FFFFFF	9.98	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	9.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049A0

Deuteranopia (green-blind)

#003D9B

Tritanopia (blue-blind)

#005365

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1d389d;
/* rgb */ color: rgb(29, 56, 157);
/* oklch */ color: oklch(39.2% 0.167 266.6);

Tailwind

colors: {
  custom: {
    50: '#706ebb',
    500: '#1d389d',
    950: '#000000',
  },
}

SCSS

$custom: #1d389d;
$custom-light: #706ebb;
$custom-dark: #000000;

JSON

{
  "hex": "#1d389d",
  "rgb": {
    "r": 29,
    "g": 56,
    "b": 157
  },
  "hsl": {
    "h": 227.344,
    "s": 68.817,
    "l": 36.471
  },
  "oklch": {
    "l": 0.39189,
    "c": 0.16686,
    "h": 266.6
  },
  "luminance": 0.05524
}

Semantic roles & 50–950 ramp

primary

#1D389D

secondary

#C3AB53

accent

#C73CEC

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1D389D

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

Preview Lab → · Contrast checker → · Palette generator →