#1A53B3#1A53B3

#1A53B3 is a mid, vivid blue. Relative luminance 0.097; OKLCH L 46.5% C 0.164 H 260.4°. Best body text is #FFFFFF at 7.16:1 contrast (WCAG AA passes).

Color values

HEX	#1A53B3
RGB	rgb(26, 83, 179)
HSL	hsl(218, 75%, 40%)
HSV	hsv(218, 85%, 70%)
CMYK	cmyk(85.5%, 53.6%, 0%, 29.8%)
CIE-LAB	lab(37.22, 18.98, -55.97)
CIE-LCH	lch(37.22, 59.10, 288.73°)
OKLab	oklab(46.52% -0.0273 -0.1615)
OKLCH	oklch(46.52% 0.164 260.4)
XYZ	xyz(11.6530, 9.6593, 43.8893)
Luminance	0.0966 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A53B3 #B37A1A

analogous

#1A9FB3 #1A53B3 #2D1AB3

triadic

#1A53B3 #B31A53 #53B31A

tetradic

#1A53B3 #B31A9F #B37A1A #1AB32D

square

#1A53B3 #B31A9F #B37A1A #1AB32D

split-complementary

#1A53B3 #B32D1A #9FB31A

monochromatic

#0A2148 #123A7E #1A53B3 #2A6EE0 #6092E8

Accessibility & contrast

On white

7.16

#1A53B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#1A53B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A53B3

7.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A53B3	#FFFFFF	#000000	##FFFFFF
##1A53B3	1.00	7.16	2.93	7.16
#FFFFFF	7.16	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#015FB6

Deuteranopia (green-blind)

#0051B1

Tritanopia (blue-blind)

#006B7B

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #1a53b3;
/* rgb */ color: rgb(26, 83, 179);
/* oklch */ color: oklch(46.5% 0.164 260.4);

Tailwind

colors: {
  custom: {
    50: '#7382ca',
    500: '#1a53b3',
    950: '#000000',
  },
}

SCSS

$custom: #1a53b3;
$custom-light: #7382ca;
$custom-dark: #000000;

JSON

{
  "hex": "#1a53b3",
  "rgb": {
    "r": 26,
    "g": 83,
    "b": 179
  },
  "hsl": {
    "h": 217.647,
    "s": 74.634,
    "l": 40.196
  },
  "oklch": {
    "l": 0.4652,
    "c": 0.16381,
    "h": 260.4
  },
  "luminance": 0.09661
}

Semantic roles & 50–950 ramp

primary

#1A53B3

secondary

#CCA35D

accent

#AC37F1

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #1A53B3

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

Preview Lab → · Contrast checker → · Palette generator →