#2533A3#2533A3

#2533A3 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.2% C 0.179 H 269.9°. Best body text is #FFFFFF at 10.09:1 contrast (WCAG AA passes).

Color values

HEX	#2533A3
RGB	rgb(37, 51, 163)
HSL	hsl(233, 63%, 39%)
HSV	hsv(233, 77%, 64%)
CMYK	cmyk(77.3%, 68.7%, 0%, 36.1%)
CIE-LAB	lab(27.86, 35.04, -61.69)
CIE-LCH	lch(27.86, 70.95, 299.60°)
OKLab	oklab(39.23% -0.0002 -0.1786)
OKLCH	oklch(39.23% 0.179 269.9)
XYZ	xyz(8.5554, 5.4044, 35.2355)
Luminance	0.0541 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2533A3 #A39525

analogous

#2572A3 #2533A3 #5625A3

triadic

#2533A3 #A32533 #33A325

tetradic

#2533A3 #A32572 #A39525 #25A356

square

#2533A3 #A32572 #A39525 #25A356

split-complementary

#2533A3 #A35625 #72A325

monochromatic

#0E143F #1A2371 #2533A3 #3446D1 #6673DC

Accessibility & contrast

On white

10.09

#2533A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#2533A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2533A3

10.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2533A3	#FFFFFF	#000000	##FFFFFF
##2533A3	1.00	10.09	2.08	10.09
#FFFFFF	10.09	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A6

Deuteranopia (green-blind)

#003CA1

Tritanopia (blue-blind)

#005267

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2533a3;
/* rgb */ color: rgb(37, 51, 163);
/* oklch */ color: oklch(39.2% 0.179 269.9);

Tailwind

colors: {
  custom: {
    50: '#756bbf',
    500: '#2533a3',
    950: '#000000',
  },
}

SCSS

$custom: #2533a3;
$custom-light: #756bbf;
$custom-dark: #000000;

JSON

{
  "hex": "#2533a3",
  "rgb": {
    "r": 37,
    "g": 51,
    "b": 163
  },
  "hsl": {
    "h": 233.333,
    "s": 63,
    "l": 39.216
  },
  "oklch": {
    "l": 0.39226,
    "c": 0.17857,
    "h": 269.9
  },
  "luminance": 0.05405
}

Semantic roles & 50–950 ramp

primary

#2533A3

secondary

#C2B762

accent

#D442E6

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2533A3

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

Preview Lab → · Contrast checker → · Palette generator →