#1D53AD#1D53AD

#1D53AD is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.1% C 0.155 H 260.2°. Best body text is #FFFFFF at 7.26:1 contrast (WCAG AA passes).

Color values

HEX	#1D53AD
RGB	rgb(29, 83, 173)
HSL	hsl(218, 71%, 40%)
HSV	hsv(218, 83%, 68%)
CMYK	cmyk(83.2%, 52%, 0%, 32.2%)
CIE-LAB	lab(36.86, 16.84, -53.01)
CIE-LCH	lch(36.86, 55.62, 287.62°)
OKLab	oklab(46.13% -0.0264 -0.1528)
OKLCH	oklch(46.13% 0.155 260.2)
XYZ	xyz(11.1400, 9.4635, 40.7666)
Luminance	0.0946 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D53AD #AD771D

analogous

#1D9BAD #1D53AD #2F1DAD

triadic

#1D53AD #AD1D53 #53AD1D

tetradic

#1D53AD #AD1D9B #AD771D #1DAD2F

square

#1D53AD #AD1D9B #AD771D #1DAD2F

split-complementary

#1D53AD #AD2F1D #9BAD1D

monochromatic

#0B2144 #143A79 #1D53AD #2C6EDC #6092E4

Accessibility & contrast

On white

7.26

#1D53AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#1D53AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D53AD

7.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D53AD	#FFFFFF	#000000	##FFFFFF
##1D53AD	1.00	7.26	2.89	7.26
#FFFFFF	7.26	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#155EB0

Deuteranopia (green-blind)

#0051AB

Tritanopia (blue-blind)

#006978

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #1d53ad;
/* rgb */ color: rgb(29, 83, 173);
/* oklch */ color: oklch(46.1% 0.155 260.2);

Tailwind

colors: {
  custom: {
    50: '#7382c6',
    500: '#1d53ad',
    950: '#000000',
  },
}

SCSS

$custom: #1d53ad;
$custom-light: #7382c6;
$custom-dark: #000000;

JSON

{
  "hex": "#1d53ad",
  "rgb": {
    "r": 29,
    "g": 83,
    "b": 173
  },
  "hsl": {
    "h": 217.5,
    "s": 71.287,
    "l": 39.608
  },
  "oklch": {
    "l": 0.46127,
    "c": 0.15503,
    "h": 260.2
  },
  "luminance": 0.09465
}

Semantic roles & 50–950 ramp

primary

#1D53AD

secondary

#C9A05D

accent

#AA3AEE

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#090A13

muted

#7B7C82

Preview Lab

Preview with #1D53AD

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

Preview Lab → · Contrast checker → · Palette generator →