#2533A8#2533A8

#2533A8 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.7% C 0.185 H 269.8°. Best body text is #FFFFFF at 9.92:1 contrast (WCAG AA passes).

Color values

HEX	#2533A8
RGB	rgb(37, 51, 168)
HSL	hsl(234, 64%, 40%)
HSV	hsv(234, 78%, 66%)
CMYK	cmyk(78%, 69.6%, 0%, 34.1%)
CIE-LAB	lab(28.35, 36.85, -63.91)
CIE-LCH	lch(28.35, 73.77, 299.97°)
OKLab	oklab(39.73% -0.0007 -0.185)
OKLCH	oklch(39.73% 0.185 269.8)
XYZ	xyz(9.0122, 5.5871, 37.6416)
Luminance	0.0559 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2533A8 #A89A25

analogous

#2574A8 #2533A8 #5925A8

triadic

#2533A8 #A82533 #33A825

tetradic

#2533A8 #A82574 #A89A25 #25A859

square

#2533A8 #A82574 #A89A25 #25A859

split-complementary

#2533A8 #A85925 #74A825

monochromatic

#0F1544 #1A2476 #2533A8 #3748D3 #6976DE

Accessibility & contrast

On white

9.92

#2533A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#2533A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2533A8

9.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2533A8	#FFFFFF	#000000	##FFFFFF
##2533A8	1.00	9.92	2.12	9.92
#FFFFFF	9.92	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049AC

Deuteranopia (green-blind)

#003DA6

Tritanopia (blue-blind)

#005369

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2533a8;
/* rgb */ color: rgb(37, 51, 168);
/* oklch */ color: oklch(39.7% 0.185 269.8);

Tailwind

colors: {
  custom: {
    50: '#766bc3',
    500: '#2533a8',
    950: '#000000',
  },
}

SCSS

$custom: #2533a8;
$custom-light: #766bc3;
$custom-dark: #000000;

JSON

{
  "hex": "#2533a8",
  "rgb": {
    "r": 37,
    "g": 51,
    "b": 168
  },
  "hsl": {
    "h": 233.588,
    "s": 63.902,
    "l": 40.196
  },
  "oklch": {
    "l": 0.39729,
    "c": 0.18503,
    "h": 269.8
  },
  "luminance": 0.05588
}

Semantic roles & 50–950 ramp

primary

#2533A8

secondary

#C4BA65

accent

#D541E7

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0613

muted

#7C7A82

Preview Lab

Preview with #2533A8

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

Preview Lab → · Contrast checker → · Palette generator →