#1D388D#1D388D

#1D388D is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.7% C 0.145 H 266.0°. Best body text is #FFFFFF at 10.49:1 contrast (WCAG AA passes).

Color values

HEX	#1D388D
RGB	rgb(29, 56, 141)
HSL	hsl(226, 66%, 33%)
HSV	hsv(226, 79%, 55%)
CMYK	cmyk(79.4%, 60.3%, 0%, 44.7%)
CIE-LAB	lab(26.77, 22.47, -50.03)
CIE-LCH	lch(26.77, 54.85, 294.19°)
OKLab	oklab(37.71% -0.01 -0.1445)
OKLCH	oklch(37.71% 0.145 266)
XYZ	xyz(6.7269, 5.0119, 25.8070)
Luminance	0.0501 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D388D #8D721D

analogous

#1D708D #1D388D #3A1D8D

triadic

#1D388D #8D1D38 #388D1D

tetradic

#1D388D #8D1D70 #8D721D #1D8D3A

square

#1D388D #8D1D70 #8D721D #1D8D3A

split-complementary

#1D388D #8D3A1D #708D1D

monochromatic

#081027 #13245A #1D388D #274CC0 #4B6DDA

Accessibility & contrast

On white

10.49

#1D388D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#1D388D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D388D

10.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D388D	#FFFFFF	#000000	##FFFFFF
##1D388D	1.00	10.49	2.00	10.49
#FFFFFF	10.49	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004590

Deuteranopia (green-blind)

#003A8B

Tritanopia (blue-blind)

#004D5D

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1d388d;
/* rgb */ color: rgb(29, 56, 141);
/* oklch */ color: oklch(37.7% 0.145 266.0);

Tailwind

colors: {
  custom: {
    50: '#6c6eaf',
    500: '#1d388d',
    950: '#000000',
  },
}

SCSS

$custom: #1d388d;
$custom-light: #6c6eaf;
$custom-dark: #000000;

JSON

{
  "hex": "#1d388d",
  "rgb": {
    "r": 29,
    "g": 56,
    "b": 141
  },
  "hsl": {
    "h": 225.536,
    "s": 65.882,
    "l": 33.333
  },
  "oklch": {
    "l": 0.37709,
    "c": 0.14488,
    "h": 266
  },
  "luminance": 0.05013
}

Semantic roles & 50–950 ramp

primary

#1D388D

secondary

#BCA14A

accent

#C03FE9

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #1D388D

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

Preview Lab → · Contrast checker → · Palette generator →