#1D386B#1D386B

#1D386B is a dark, moderate blue. Relative luminance 0.042; OKLCH L 34.9% C 0.095 H 261.8°. Best body text is #FFFFFF at 11.47:1 contrast (WCAG AA passes).

Color values

HEX	#1D386B
RGB	rgb(29, 56, 107)
HSL	hsl(219, 57%, 27%)
HSV	hsv(219, 73%, 42%)
CMYK	cmyk(72.9%, 47.7%, 0%, 58%)
CIE-LAB	lab(24.16, 8.75, -32.81)
CIE-LCH	lch(24.16, 33.96, 284.93°)
OKLab	oklab(34.91% -0.0136 -0.0939)
OKLCH	oklch(34.91% 0.095 261.8)
XYZ	xyz(4.5738, 4.1506, 14.4672)
Luminance	0.0415 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D386B #6B501D

analogous

#1D5F6B #1D386B #291D6B

triadic

#1D386B #6B1D38 #386B1D

tetradic

#1D386B #6B1D5F #6B501D #1D6B29

square

#1D386B #6B1D5F #6B501D #1D6B29

split-complementary

#1D386B #6B291D #5F6B1D

monochromatic

#070D18 #101F3B #1D386B #2A519B #396BC9

Accessibility & contrast

On white

11.47

#1D386B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#1D386B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D386B

11.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D386B	#FFFFFF	#000000	##FFFFFF
##1D386B	1.00	11.47	1.83	11.47
#FFFFFF	11.47	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F3D6D

Deuteranopia (green-blind)

#10366A

Tritanopia (blue-blind)

#00444C

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1d386b;
/* rgb */ color: rgb(29, 56, 107);
/* oklch */ color: oklch(34.9% 0.095 261.8);

Tailwind

colors: {
  custom: {
    50: '#646e96',
    500: '#1d386b',
    950: '#000000',
  },
}

SCSS

$custom: #1d386b;
$custom-light: #646e96;
$custom-dark: #000000;

JSON

{
  "hex": "#1d386b",
  "rgb": {
    "r": 29,
    "g": 56,
    "b": 107
  },
  "hsl": {
    "h": 219.231,
    "s": 57.353,
    "l": 26.667
  },
  "oklch": {
    "l": 0.34909,
    "c": 0.09486,
    "h": 261.8
  },
  "luminance": 0.04151
}

Semantic roles & 50–950 ramp

primary

#1D386B

secondary

#A08044

accent

#AC47E1

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #1D386B

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

Preview Lab → · Contrast checker → · Palette generator →