#2553CA#2553CA

#2553CA is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.7% C 0.192 H 264.3°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#2553CA
RGB	rgb(37, 83, 202)
HSL	hsl(223, 69%, 47%)
HSV	hsv(223, 82%, 79%)
CMYK	cmyk(81.7%, 58.9%, 0%, 20.8%)
CIE-LAB	lab(39.31, 28.82, -66.00)
CIE-LCH	lch(39.31, 72.02, 293.59°)
OKLab	oklab(48.74% -0.0191 -0.1908)
OKLCH	oklch(48.74% 0.192 264.3)
XYZ	xyz(14.5131, 10.8423, 57.1935)
Luminance	0.1084 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2553CA #CA9C25

analogous

#25A6CA #2553CA #4A25CA

triadic

#2553CA #CA2553 #53CA25

tetradic

#2553CA #CA25A6 #CA9C25 #25CA4A

square

#2553CA #CA25A6 #CA9C25 #25CA4A

split-complementary

#2553CA #CA4A25 #A6CA25

monochromatic

#122863 #1C3E96 #2553CA #4E76DF #819EE8

Accessibility & contrast

On white

6.63

#2553CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#2553CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2553CA

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2553CA	#FFFFFF	#000000	##FFFFFF
##2553CA	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064CE

Deuteranopia (green-blind)

#0055C8

Tritanopia (blue-blind)

#007186

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #2553ca;
/* rgb */ color: rgb(37, 83, 202);
/* oklch */ color: oklch(48.7% 0.192 264.3);

Tailwind

colors: {
  custom: {
    50: '#7c82db',
    500: '#2553ca',
    950: '#000000',
  },
}

SCSS

$custom: #2553ca;
$custom-light: #7c82db;
$custom-dark: #000000;

JSON

{
  "hex": "#2553ca",
  "rgb": {
    "r": 37,
    "g": 83,
    "b": 202
  },
  "hsl": {
    "h": 223.273,
    "s": 69.038,
    "l": 46.863
  },
  "oklch": {
    "l": 0.48743,
    "c": 0.19181,
    "h": 264.3
  },
  "luminance": 0.10844
}

Semantic roles & 50–950 ramp

primary

#2553CA

secondary

#D1B97A

accent

#BB3CEC

background

#F8F7FD

surface

#EFEEFB

border

#CAC9D4

text

#0B0A15

muted

#7C7C83

Preview Lab

Preview with #2553CA

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

Preview Lab → · Contrast checker → · Palette generator →