#2533BC#2533BC

#2533BC is a dark, highly saturated blue. Relative luminance 0.064; OKLCH L 41.8% C 0.210 H 269.2°. Best body text is #FFFFFF at 9.22:1 contrast (WCAG AA passes).

Color values

HEX	#2533BC
RGB	rgb(37, 51, 188)
HSL	hsl(234, 67%, 44%)
HSV	hsv(234, 80%, 74%)
CMYK	cmyk(80.3%, 72.9%, 0%, 26.3%)
CIE-LAB	lab(30.38, 43.91, -72.49)
CIE-LCH	lch(30.38, 84.75, 301.21°)
OKLab	oklab(41.8% -0.0031 -0.21)
OKLCH	oklch(41.8% 0.21 269.2)
XYZ	xyz(11.0208, 6.3905, 48.2199)
Luminance	0.0639 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2533BC #BCAE25

analogous

#257FBC #2533BC #6325BC

triadic

#2533BC #BC2533 #33BC25

tetradic

#2533BC #BC257F #BCAE25 #25BC63

square

#2533BC #BC257F #BCAE25 #25BC63

split-complementary

#2533BC #BC6325 #7FBC25

monochromatic

#111756 #1B2589 #2533BC #4452DA #7781E4

Accessibility & contrast

On white

9.22

#2533BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#2533BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2533BC

9.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2533BC	#FFFFFF	#000000	##FFFFFF
##2533BC	1.00	9.22	2.28	9.22
#FFFFFF	9.22	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FC0

Deuteranopia (green-blind)

#0040BA

Tritanopia (blue-blind)

#005B74

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #2533bc;
/* rgb */ color: rgb(37, 51, 188);
/* oklch */ color: oklch(41.8% 0.210 269.2);

Tailwind

colors: {
  custom: {
    50: '#7b6cd1',
    500: '#2533bc',
    950: '#000000',
  },
}

SCSS

$custom: #2533bc;
$custom-light: #7b6cd1;
$custom-dark: #000000;

JSON

{
  "hex": "#2533bc",
  "rgb": {
    "r": 37,
    "g": 51,
    "b": 188
  },
  "hsl": {
    "h": 234.437,
    "s": 67.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.41798,
    "c": 0.21003,
    "h": 269.2
  },
  "luminance": 0.06392
}

Semantic roles & 50–950 ramp

primary

#2533BC

secondary

#CCC371

accent

#DA3EEA

background

#F8F6FD

surface

#EFEBFA

border

#CAC6D3

text

#0B0714

muted

#7C7A83

Preview Lab

Preview with #2533BC

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

Preview Lab → · Contrast checker → · Palette generator →