#2533A5#2533A5

#2533A5 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.4% C 0.181 H 269.9°. Best body text is #FFFFFF at 10.02:1 contrast (WCAG AA passes).

Color values

HEX	#2533A5
RGB	rgb(37, 51, 165)
HSL	hsl(233, 63%, 40%)
HSV	hsv(233, 78%, 65%)
CMYK	cmyk(77.6%, 69.1%, 0%, 35.3%)
CIE-LAB	lab(28.05, 35.77, -62.58)
CIE-LCH	lch(28.05, 72.08, 299.75°)
OKLab	oklab(39.43% -0.0004 -0.1812)
OKLCH	oklch(39.43% 0.181 269.9)
XYZ	xyz(8.7360, 5.4766, 36.1867)
Luminance	0.0548 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2533A5 #A59725

analogous

#2573A5 #2533A5 #5725A5

triadic

#2533A5 #A52533 #33A525

tetradic

#2533A5 #A52573 #A59725 #25A557

square

#2533A5 #A52573 #A59725 #25A557

split-complementary

#2533A5 #A55725 #73A525

monochromatic

#0F1441 #1A2473 #2533A5 #3547D2 #6774DD

Accessibility & contrast

On white

10.02

#2533A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#2533A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2533A5

10.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2533A5	#FFFFFF	#000000	##FFFFFF
##2533A5	1.00	10.02	2.10	10.02
#FFFFFF	10.02	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A9

Deuteranopia (green-blind)

#003CA3

Tritanopia (blue-blind)

#005268

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2533a5;
/* rgb */ color: rgb(37, 51, 165);
/* oklch */ color: oklch(39.4% 0.181 269.9);

Tailwind

colors: {
  custom: {
    50: '#756bc1',
    500: '#2533a5',
    950: '#000000',
  },
}

SCSS

$custom: #2533a5;
$custom-light: #756bc1;
$custom-dark: #000000;

JSON

{
  "hex": "#2533a5",
  "rgb": {
    "r": 37,
    "g": 51,
    "b": 165
  },
  "hsl": {
    "h": 233.438,
    "s": 63.366,
    "l": 39.608
  },
  "oklch": {
    "l": 0.39427,
    "c": 0.18116,
    "h": 269.9
  },
  "luminance": 0.05478
}

Semantic roles & 50–950 ramp

primary

#2533A5

secondary

#C3B863

accent

#D441E6

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2533A5

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

Preview Lab → · Contrast checker → · Palette generator →