#1D376D#1D376D

#1D376D is a dark, moderate blue. Relative luminance 0.041; OKLCH L 34.8% C 0.099 H 263.0°. Best body text is #FFFFFF at 11.54:1 contrast (WCAG AA passes).

Color values

HEX	#1D376D
RGB	rgb(29, 55, 109)
HSL	hsl(221, 58%, 27%)
HSV	hsv(221, 73%, 43%)
CMYK	cmyk(73.4%, 49.5%, 0%, 57.3%)
CIE-LAB	lab(23.99, 10.26, -34.37)
CIE-LCH	lch(23.99, 35.87, 286.63°)
OKLab	oklab(34.82% -0.0122 -0.0985)
OKLCH	oklch(34.82% 0.099 263)
XYZ	xyz(4.6322, 4.0972, 15.0118)
Luminance	0.0410 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D376D #6D531D

analogous

#1D5F6D #1D376D #2B1D6D

triadic

#1D376D #6D1D37 #376D1D

tetradic

#1D376D #6D1D5F #6D531D #1D6D2B

square

#1D376D #6D1D5F #6D531D #1D6D2B

split-complementary

#1D376D #6D2B1D #5F6D1D

monochromatic

#060C18 #101F3D #1D376D #2A4F9D #3A69CB

Accessibility & contrast

On white

11.54

#1D376D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#1D376D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D376D

11.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D376D	#FFFFFF	#000000	##FFFFFF
##1D376D	1.00	11.54	1.82	11.54
#FFFFFF	11.54	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B3D6F

Deuteranopia (green-blind)

#08366C

Tritanopia (blue-blind)

#00444C

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1d376d;
/* rgb */ color: rgb(29, 55, 109);
/* oklch */ color: oklch(34.8% 0.099 263.0);

Tailwind

colors: {
  custom: {
    50: '#646d97',
    500: '#1d376d',
    950: '#000000',
  },
}

SCSS

$custom: #1d376d;
$custom-light: #646d97;
$custom-dark: #000000;

JSON

{
  "hex": "#1d376d",
  "rgb": {
    "r": 29,
    "g": 55,
    "b": 109
  },
  "hsl": {
    "h": 220.5,
    "s": 57.971,
    "l": 27.059
  },
  "oklch": {
    "l": 0.3482,
    "c": 0.09925,
    "h": 263
  },
  "luminance": 0.04098
}

Semantic roles & 50–950 ramp

primary

#1D376D

secondary

#A28344

accent

#AF47E1

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #1D376D

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

Preview Lab → · Contrast checker → · Palette generator →