#2553A8#2553A8

#2553A8 is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.0% C 0.146 H 261.3°. Best body text is #FFFFFF at 7.29:1 contrast (WCAG AA passes).

Color values

HEX	#2553A8
RGB	rgb(37, 83, 168)
HSL	hsl(219, 64%, 40%)
HSV	hsv(219, 78%, 66%)
CMYK	cmyk(78%, 50.6%, 0%, 34.1%)
CIE-LAB	lab(36.75, 15.69, -50.20)
CIE-LCH	lch(36.75, 52.59, 287.36°)
OKLab	oklab(46% -0.022 -0.1444)
OKLCH	oklch(46% 0.146 261.3)
XYZ	xyz(10.9215, 9.4057, 38.2781)
Luminance	0.0941 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2553A8 #A87A25

analogous

#2595A8 #2553A8 #3825A8

triadic

#2553A8 #A82553 #53A825

tetradic

#2553A8 #A82595 #A87A25 #25A838

square

#2553A8 #A82595 #A87A25 #25A838

split-complementary

#2553A8 #A83825 #95A825

monochromatic

#0F2144 #1A3A76 #2553A8 #376ED3 #6992DE

Accessibility & contrast

On white

7.29

#2553A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#2553A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2553A8

7.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2553A8	#FFFFFF	#000000	##FFFFFF
##2553A8	1.00	7.29	2.88	7.29
#FFFFFF	7.29	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F5DAB

Deuteranopia (green-blind)

#0051A6

Tritanopia (blue-blind)

#006775

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #2553a8;
/* rgb */ color: rgb(37, 83, 168);
/* oklch */ color: oklch(46.0% 0.146 261.3);

Tailwind

colors: {
  custom: {
    50: '#7482c2',
    500: '#2553a8',
    950: '#000000',
  },
}

SCSS

$custom: #2553a8;
$custom-light: #7482c2;
$custom-dark: #000000;

JSON

{
  "hex": "#2553a8",
  "rgb": {
    "r": 37,
    "g": 83,
    "b": 168
  },
  "hsl": {
    "h": 218.931,
    "s": 63.902,
    "l": 40.196
  },
  "oklch": {
    "l": 0.46001,
    "c": 0.14606,
    "h": 261.3
  },
  "luminance": 0.09407
}

Semantic roles & 50–950 ramp

primary

#2553A8

secondary

#C4A365

accent

#AD41E7

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #2553A8

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

Preview Lab → · Contrast checker → · Palette generator →