#1D448D#1D448D

#1D448D is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.3% C 0.129 H 261.5°. Best body text is #FFFFFF at 9.28:1 contrast (WCAG AA passes).

Color values

HEX	#1D448D
RGB	rgb(29, 68, 141)
HSL	hsl(219, 66%, 33%)
HSV	hsv(219, 79%, 55%)
CMYK	cmyk(79.4%, 51.8%, 0%, 44.7%)
CIE-LAB	lab(30.20, 14.17, -44.46)
CIE-LCH	lch(30.20, 46.67, 287.67°)
OKLab	oklab(40.3% -0.0191 -0.1279)
OKLCH	oklch(40.3% 0.129 261.5)
XYZ	xyz(7.3798, 6.3177, 26.0246)
Luminance	0.0632 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D448D #8D661D

analogous

#1D7C8D #1D448D #2E1D8D

triadic

#1D448D #8D1D44 #448D1D

tetradic

#1D448D #8D1D7C #8D661D #1D8D2E

square

#1D448D #8D1D7C #8D661D #1D8D2E

split-complementary

#1D448D #8D2E1D #7C8D1D

monochromatic

#081327 #132C5A #1D448D #275CC0 #4B7CDA

Accessibility & contrast

On white

9.28

#1D448D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#1D448D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D448D

9.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D448D	#FFFFFF	#000000	##FFFFFF
##1D448D	1.00	9.28	2.26	9.28
#FFFFFF	9.28	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#164D90

Deuteranopia (green-blind)

#00428C

Tritanopia (blue-blind)

#005662

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1d448d;
/* rgb */ color: rgb(29, 68, 141);
/* oklch */ color: oklch(40.3% 0.129 261.5);

Tailwind

colors: {
  custom: {
    50: '#6b77af',
    500: '#1d448d',
    950: '#000000',
  },
}

SCSS

$custom: #1d448d;
$custom-light: #6b77af;
$custom-dark: #000000;

JSON

{
  "hex": "#1d448d",
  "rgb": {
    "r": 29,
    "g": 68,
    "b": 141
  },
  "hsl": {
    "h": 219.107,
    "s": 65.882,
    "l": 33.333
  },
  "oklch": {
    "l": 0.40303,
    "c": 0.12936,
    "h": 261.5
  },
  "luminance": 0.06319
}

Semantic roles & 50–950 ramp

primary

#1D448D

secondary

#BC944A

accent

#AE3FE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #1D448D

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

Preview Lab → · Contrast checker → · Palette generator →