#1D448C#1D448C

#1D448C is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.2% C 0.128 H 261.3°. Best body text is #FFFFFF at 9.30:1 contrast (WCAG AA passes).

Color values

HEX	#1D448C
RGB	rgb(29, 68, 140)
HSL	hsl(219, 66%, 33%)
HSV	hsv(219, 79%, 55%)
CMYK	cmyk(79.3%, 51.4%, 0%, 45.1%)
CIE-LAB	lab(30.13, 13.76, -43.96)
CIE-LCH	lch(30.13, 46.07, 287.38°)
OKLab	oklab(40.23% -0.0193 -0.1265)
OKLCH	oklch(40.23% 0.128 261.3)
XYZ	xyz(7.3057, 6.2881, 25.6345)
Luminance	0.0629 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D448C #8C651D

analogous

#1D7B8C #1D448C #2E1D8C

triadic

#1D448C #8C1D44 #448C1D

tetradic

#1D448C #8C1D7B #8C651D #1D8C2E

square

#1D448C #8C1D7B #8C651D #1D8C2E

split-complementary

#1D448C #8C2E1D #7B8C1D

monochromatic

#081327 #122B59 #1D448C #285DBF #4A7CD9

Accessibility & contrast

On white

9.30

#1D448C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#1D448C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D448C

9.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D448C	#FFFFFF	#000000	##FFFFFF
##1D448C	1.00	9.30	2.26	9.30
#FFFFFF	9.30	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#184C8F

Deuteranopia (green-blind)

#00428B

Tritanopia (blue-blind)

#005561

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1d448c;
/* rgb */ color: rgb(29, 68, 140);
/* oklch */ color: oklch(40.2% 0.128 261.3);

Tailwind

colors: {
  custom: {
    50: '#6b77ae',
    500: '#1d448c',
    950: '#000000',
  },
}

SCSS

$custom: #1d448c;
$custom-light: #6b77ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1d448c",
  "rgb": {
    "r": 29,
    "g": 68,
    "b": 140
  },
  "hsl": {
    "h": 218.919,
    "s": 65.68,
    "l": 33.137
  },
  "oklch": {
    "l": 0.40225,
    "c": 0.12793,
    "h": 261.3
  },
  "luminance": 0.06289
}

Semantic roles & 50–950 ramp

primary

#1D448C

secondary

#BC9349

accent

#AD3FE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #1D448C

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

Preview Lab → · Contrast checker → · Palette generator →