#1D45AD#1D45AD

#1D45AD is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.2% C 0.172 H 264.3°. Best body text is #FFFFFF at 8.38:1 contrast (WCAG AA passes).

Color values

HEX	#1D45AD
RGB	rgb(29, 69, 173)
HSL	hsl(223, 71%, 40%)
HSV	hsv(223, 83%, 68%)
CMYK	cmyk(83.2%, 60.1%, 0%, 32.2%)
CIE-LAB	lab(32.99, 26.24, -59.30)
CIE-LCH	lch(32.99, 64.85, 293.87°)
OKLab	oklab(43.2% -0.0173 -0.1715)
OKLCH	oklch(43.2% 0.172 264.3)
XYZ	xyz(10.1750, 7.5333, 40.4449)
Luminance	0.0754 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D45AD #AD851D

analogous

#1D8DAD #1D45AD #3D1DAD

triadic

#1D45AD #AD1D45 #45AD1D

tetradic

#1D45AD #AD1D8D #AD851D #1DAD3D

square

#1D45AD #AD1D8D #AD851D #1DAD3D

split-complementary

#1D45AD #AD3D1D #8DAD1D

monochromatic

#0B1B44 #143079 #1D45AD #2C5DDC #6085E4

Accessibility & contrast

On white

8.38

#1D45AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#1D45AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D45AD

8.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D45AD	#FFFFFF	#000000	##FFFFFF
##1D45AD	1.00	8.38	2.51	8.38
#FFFFFF	8.38	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B0

Deuteranopia (green-blind)

#0047AB

Tritanopia (blue-blind)

#006072

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1d45ad;
/* rgb */ color: rgb(29, 69, 173);
/* oklch */ color: oklch(43.2% 0.172 264.3);

Tailwind

colors: {
  custom: {
    50: '#7378c6',
    500: '#1d45ad',
    950: '#000000',
  },
}

SCSS

$custom: #1d45ad;
$custom-light: #7378c6;
$custom-dark: #000000;

JSON

{
  "hex": "#1d45ad",
  "rgb": {
    "r": 29,
    "g": 69,
    "b": 173
  },
  "hsl": {
    "h": 223.333,
    "s": 71.287,
    "l": 39.608
  },
  "oklch": {
    "l": 0.43201,
    "c": 0.1724,
    "h": 264.3
  },
  "luminance": 0.07535
}

Semantic roles & 50–950 ramp

primary

#1D45AD

secondary

#C9AB5D

accent

#BC3AEE

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #1D45AD

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

Preview Lab → · Contrast checker → · Palette generator →