#1D45A7#1D45A7

#1D45A7 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.7% C 0.164 H 263.9°. Best body text is #FFFFFF at 8.53:1 contrast (WCAG AA passes).

Color values

HEX	#1D45A7
RGB	rgb(29, 69, 167)
HSL	hsl(223, 70%, 38%)
HSV	hsv(223, 83%, 65%)
CMYK	cmyk(82.6%, 58.7%, 0%, 34.5%)
CIE-LAB	lab(32.49, 23.89, -56.52)
CIE-LCH	lch(32.49, 61.36, 292.91°)
OKLab	oklab(42.67% -0.0175 -0.1634)
OKLCH	oklch(42.67% 0.164 263.9)
XYZ	xyz(9.6074, 7.3063, 37.4556)
Luminance	0.0731 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D45A7 #A77F1D

analogous

#1D8AA7 #1D45A7 #3A1DA7

triadic

#1D45A7 #A71D45 #45A71D

tetradic

#1D45A7 #A71D8A #A77F1D #1DA73A

square

#1D45A7 #A71D8A #A77F1D #1DA73A

split-complementary

#1D45A7 #A73A1D #8AA71D

monochromatic

#0B1A3F #142F73 #1D45A7 #285BDA #5C83E3

Accessibility & contrast

On white

8.53

#1D45A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#1D45A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D45A7

8.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D45A7	#FFFFFF	#000000	##FFFFFF
##1D45A7	1.00	8.53	2.46	8.53
#FFFFFF	8.53	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053AA

Deuteranopia (green-blind)

#0046A5

Tritanopia (blue-blind)

#005E6F

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1d45a7;
/* rgb */ color: rgb(29, 69, 167);
/* oklch */ color: oklch(42.7% 0.164 263.9);

Tailwind

colors: {
  custom: {
    50: '#7278c2',
    500: '#1d45a7',
    950: '#000000',
  },
}

SCSS

$custom: #1d45a7;
$custom-light: #7278c2;
$custom-dark: #000000;

JSON

{
  "hex": "#1d45a7",
  "rgb": {
    "r": 29,
    "g": 69,
    "b": 167
  },
  "hsl": {
    "h": 222.609,
    "s": 70.408,
    "l": 38.431
  },
  "oklch": {
    "l": 0.42674,
    "c": 0.16431,
    "h": 263.9
  },
  "luminance": 0.07307
}

Semantic roles & 50–950 ramp

primary

#1D45A7

secondary

#C7A759

accent

#B93BED

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1D45A7

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

Preview Lab → · Contrast checker → · Palette generator →