#2533A4#2533A4

#2533A4 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.3% C 0.180 H 269.9°. Best body text is #FFFFFF at 10.06:1 contrast (WCAG AA passes).

Color values

HEX	#2533A4
RGB	rgb(37, 51, 164)
HSL	hsl(233, 63%, 39%)
HSV	hsv(233, 77%, 64%)
CMYK	cmyk(77.4%, 68.9%, 0%, 35.7%)
CIE-LAB	lab(27.95, 35.40, -62.14)
CIE-LCH	lch(27.95, 71.52, 299.67°)
OKLab	oklab(39.33% -0.0003 -0.1799)
OKLCH	oklch(39.33% 0.18 269.9)
XYZ	xyz(8.6453, 5.4404, 35.7092)
Luminance	0.0544 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2533A4 #A49625

analogous

#2573A4 #2533A4 #5725A4

triadic

#2533A4 #A42533 #33A425

tetradic

#2533A4 #A42573 #A49625 #25A457

square

#2533A4 #A42573 #A49625 #25A457

split-complementary

#2533A4 #A45725 #73A425

monochromatic

#0E1440 #1A2372 #2533A4 #3546D1 #6774DD

Accessibility & contrast

On white

10.06

#2533A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#2533A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2533A4

10.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2533A4	#FFFFFF	#000000	##FFFFFF
##2533A4	1.00	10.06	2.09	10.06
#FFFFFF	10.06	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A7

Deuteranopia (green-blind)

#003CA2

Tritanopia (blue-blind)

#005267

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2533a4;
/* rgb */ color: rgb(37, 51, 164);
/* oklch */ color: oklch(39.3% 0.180 269.9);

Tailwind

colors: {
  custom: {
    50: '#756bc0',
    500: '#2533a4',
    950: '#000000',
  },
}

SCSS

$custom: #2533a4;
$custom-light: #756bc0;
$custom-dark: #000000;

JSON

{
  "hex": "#2533a4",
  "rgb": {
    "r": 37,
    "g": 51,
    "b": 164
  },
  "hsl": {
    "h": 233.386,
    "s": 63.184,
    "l": 39.412
  },
  "oklch": {
    "l": 0.39326,
    "c": 0.17987,
    "h": 269.9
  },
  "luminance": 0.05441
}

Semantic roles & 50–950 ramp

primary

#2533A4

secondary

#C2B862

accent

#D442E6

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2533A4

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

Preview Lab → · Contrast checker → · Palette generator →