#1D448F#1D448F

#1D448F is a dark, vivid blue. Relative luminance 0.064; OKLCH L 40.5% C 0.132 H 261.8°. Best body text is #FFFFFF at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#1D448F
RGB	rgb(29, 68, 143)
HSL	hsl(219, 66%, 34%)
HSV	hsv(219, 80%, 56%)
CMYK	cmyk(79.7%, 52.4%, 0%, 43.9%)
CIE-LAB	lab(30.35, 14.98, -45.46)
CIE-LCH	lch(30.35, 47.86, 288.24°)
OKLab	oklab(40.46% -0.0189 -0.1309)
OKLCH	oklch(40.46% 0.132 261.8)
XYZ	xyz(7.5300, 6.3778, 26.8154)
Luminance	0.0638 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D448F #8F681D

analogous

#1D7D8F #1D448F #2F1D8F

triadic

#1D448F #8F1D44 #448F1D

tetradic

#1D448F #8F1D7D #8F681D #1D8F2F

square

#1D448F #8F1D7D #8F681D #1D8F2F

split-complementary

#1D448F #8F2F1D #7D8F1D

monochromatic

#081429 #132C5C #1D448F #275CC2 #4C7DDB

Accessibility & contrast

On white

9.23

#1D448F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#1D448F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D448F

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D448F	#FFFFFF	#000000	##FFFFFF
##1D448F	1.00	9.23	2.28	9.23
#FFFFFF	9.23	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#134D92

Deuteranopia (green-blind)

#00438E

Tritanopia (blue-blind)

#005663

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1d448f;
/* rgb */ color: rgb(29, 68, 143);
/* oklch */ color: oklch(40.5% 0.132 261.8);

Tailwind

colors: {
  custom: {
    50: '#6c77b0',
    500: '#1d448f',
    950: '#000000',
  },
}

SCSS

$custom: #1d448f;
$custom-light: #6c77b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d448f",
  "rgb": {
    "r": 29,
    "g": 68,
    "b": 143
  },
  "hsl": {
    "h": 219.474,
    "s": 66.279,
    "l": 33.725
  },
  "oklch": {
    "l": 0.40461,
    "c": 0.13221,
    "h": 261.8
  },
  "luminance": 0.06379
}

Semantic roles & 50–950 ramp

primary

#1D448F

secondary

#BD964B

accent

#AF3FE9

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1D448F

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

Preview Lab → · Contrast checker → · Palette generator →