#1D53A6#1D53A6

#1D53A6 is a mid, vivid blue. Relative luminance 0.092; OKLCH L 45.6% C 0.145 H 259.2°. Best body text is #FFFFFF at 7.39:1 contrast (WCAG AA passes).

Color values

HEX	#1D53A6
RGB	rgb(29, 83, 166)
HSL	hsl(216, 70%, 38%)
HSV	hsv(216, 83%, 65%)
CMYK	cmyk(82.5%, 50%, 0%, 34.9%)
CIE-LAB	lab(36.37, 14.05, -49.65)
CIE-LCH	lch(36.37, 51.60, 285.80°)
OKLab	oklab(45.59% -0.0273 -0.1429)
OKLCH	oklch(45.59% 0.145 259.2)
XYZ	xyz(10.4804, 9.1996, 37.2923)
Luminance	0.0920 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D53A6 #A6701D

analogous

#1D97A6 #1D53A6 #2B1DA6

triadic

#1D53A6 #A61D53 #53A61D

tetradic

#1D53A6 #A61D97 #A6701D #1DA62B

square

#1D53A6 #A61D97 #A6701D #1DA62B

split-complementary

#1D53A6 #A62B1D #97A61D

monochromatic

#0B1F3E #143972 #1D53A6 #276DD9 #5B90E2

Accessibility & contrast

On white

7.39

#1D53A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#1D53A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D53A6

7.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D53A6	#FFFFFF	#000000	##FFFFFF
##1D53A6	1.00	7.39	2.84	7.39
#FFFFFF	7.39	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#205CA9

Deuteranopia (green-blind)

#0050A4

Tritanopia (blue-blind)

#006774

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #1d53a6;
/* rgb */ color: rgb(29, 83, 166);
/* oklch */ color: oklch(45.6% 0.145 259.2);

Tailwind

colors: {
  custom: {
    50: '#7182c1',
    500: '#1d53a6',
    950: '#000000',
  },
}

SCSS

$custom: #1d53a6;
$custom-light: #7182c1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d53a6",
  "rgb": {
    "r": 29,
    "g": 83,
    "b": 166
  },
  "hsl": {
    "h": 216.35,
    "s": 70.256,
    "l": 38.235
  },
  "oklch": {
    "l": 0.45589,
    "c": 0.14547,
    "h": 259.2
  },
  "luminance": 0.09201
}

Semantic roles & 50–950 ramp

primary

#1D53A6

secondary

#C69B59

accent

#A73BED

background

#F7F7FB

surface

#EDEEF7

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1D53A6

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

Preview Lab → · Contrast checker → · Palette generator →