#1D388E#1D388E

#1D388E is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.8% C 0.146 H 266.1°. Best body text is #FFFFFF at 10.46:1 contrast (WCAG AA passes).

Color values

HEX	#1D388E
RGB	rgb(29, 56, 142)
HSL	hsl(226, 66%, 34%)
HSV	hsv(226, 80%, 56%)
CMYK	cmyk(79.6%, 60.6%, 0%, 44.3%)
CIE-LAB	lab(26.85, 22.87, -50.51)
CIE-LCH	lch(26.85, 55.45, 294.36°)
OKLab	oklab(37.8% -0.01 -0.1459)
OKLCH	oklch(37.8% 0.146 266.1)
XYZ	xyz(6.8016, 5.0418, 26.2006)
Luminance	0.0504 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D388E #8E731D

analogous

#1D708E #1D388E #3A1D8E

triadic

#1D388E #8E1D38 #388E1D

tetradic

#1D388E #8E1D70 #8E731D #1D8E3A

square

#1D388E #8E1D70 #8E731D #1D8E3A

split-complementary

#1D388E #8E3A1D #708E1D

monochromatic

#081028 #13245B #1D388E #274CC1 #4B6DDA

Accessibility & contrast

On white

10.46

#1D388E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#1D388E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D388E

10.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D388E	#FFFFFF	#000000	##FFFFFF
##1D388E	1.00	10.46	2.01	10.46
#FFFFFF	10.46	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004591

Deuteranopia (green-blind)

#003A8C

Tritanopia (blue-blind)

#004E5D

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1d388e;
/* rgb */ color: rgb(29, 56, 142);
/* oklch */ color: oklch(37.8% 0.146 266.1);

Tailwind

colors: {
  custom: {
    50: '#6c6eb0',
    500: '#1d388e',
    950: '#000000',
  },
}

SCSS

$custom: #1d388e;
$custom-light: #6c6eb0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d388e",
  "rgb": {
    "r": 29,
    "g": 56,
    "b": 142
  },
  "hsl": {
    "h": 225.664,
    "s": 66.082,
    "l": 33.529
  },
  "oklch": {
    "l": 0.37799,
    "c": 0.14628,
    "h": 266.1
  },
  "luminance": 0.05043
}

Semantic roles & 50–950 ramp

primary

#1D388E

secondary

#BDA14A

accent

#C03FE9

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #1D388E

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

Preview Lab → · Contrast checker → · Palette generator →