#1D45A8#1D45A8

#1D45A8 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.8% C 0.166 H 264.0°. Best body text is #FFFFFF at 8.51:1 contrast (WCAG AA passes).

Color values

HEX	#1D45A8
RGB	rgb(29, 69, 168)
HSL	hsl(223, 71%, 39%)
HSV	hsv(223, 83%, 66%)
CMYK	cmyk(82.7%, 58.9%, 0%, 34.1%)
CIE-LAB	lab(32.58, 24.28, -56.99)
CIE-LCH	lch(32.58, 61.95, 293.08°)
OKLab	oklab(42.76% -0.0174 -0.1647)
OKLCH	oklch(42.76% 0.166 264)
XYZ	xyz(9.7002, 7.3434, 37.9444)
Luminance	0.0735 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D45A8 #A8801D

analogous

#1D8AA8 #1D45A8 #3A1DA8

triadic

#1D45A8 #A81D45 #45A81D

tetradic

#1D45A8 #A81D8A #A8801D #1DA83A

square

#1D45A8 #A81D8A #A8801D #1DA83A

split-complementary

#1D45A8 #A83A1D #8AA81D

monochromatic

#0B1A40 #143074 #1D45A8 #285BDA #5C83E3

Accessibility & contrast

On white

8.51

#1D45A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#1D45A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D45A8

8.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D45A8	#FFFFFF	#000000	##FFFFFF
##1D45A8	1.00	8.51	2.47	8.51
#FFFFFF	8.51	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053AB

Deuteranopia (green-blind)

#0046A6

Tritanopia (blue-blind)

#005E6F

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1d45a8;
/* rgb */ color: rgb(29, 69, 168);
/* oklch */ color: oklch(42.8% 0.166 264.0);

Tailwind

colors: {
  custom: {
    50: '#7278c3',
    500: '#1d45a8',
    950: '#000000',
  },
}

SCSS

$custom: #1d45a8;
$custom-light: #7278c3;
$custom-dark: #000000;

JSON

{
  "hex": "#1d45a8",
  "rgb": {
    "r": 29,
    "g": 69,
    "b": 168
  },
  "hsl": {
    "h": 222.734,
    "s": 70.558,
    "l": 38.627
  },
  "oklch": {
    "l": 0.42761,
    "c": 0.16567,
    "h": 264
  },
  "luminance": 0.07345
}

Semantic roles & 50–950 ramp

primary

#1D45A8

secondary

#C7A85A

accent

#BA3AED

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#090813

muted

#7B7B82

Preview Lab

Preview with #1D45A8

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

Preview Lab → · Contrast checker → · Palette generator →