#2533A9#2533A9

#2533A9 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.8% C 0.186 H 269.7°. Best body text is #FFFFFF at 9.88:1 contrast (WCAG AA passes).

Color values

HEX	#2533A9
RGB	rgb(37, 51, 169)
HSL	hsl(234, 64%, 40%)
HSV	hsv(234, 78%, 66%)
CMYK	cmyk(78.1%, 69.8%, 0%, 33.7%)
CIE-LAB	lab(28.44, 37.21, -64.35)
CIE-LCH	lch(28.44, 74.33, 300.04°)
OKLab	oklab(39.83% -0.0008 -0.1863)
OKLCH	oklch(39.83% 0.186 269.7)
XYZ	xyz(9.1058, 5.6245, 38.1342)
Luminance	0.0563 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 7.26

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2533A9 #A99B25

analogous

#2575A9 #2533A9 #5925A9

triadic

#2533A9 #A92533 #33A925

tetradic

#2533A9 #A92575 #A99B25 #25A959

square

#2533A9 #A92575 #A99B25 #25A959

split-complementary

#2533A9 #A95925 #75A925

monochromatic

#0F1545 #1A2477 #2533A9 #3848D3 #6A76DE

Accessibility & contrast

On white

9.88

#2533A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#2533A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2533A9

9.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2533A9	#FFFFFF	#000000	##FFFFFF
##2533A9	1.00	9.88	2.13	9.88
#FFFFFF	9.88	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049AD

Deuteranopia (green-blind)

#003DA7

Tritanopia (blue-blind)

#00546A

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2533a9;
/* rgb */ color: rgb(37, 51, 169);
/* oklch */ color: oklch(39.8% 0.186 269.7);

Tailwind

colors: {
  custom: {
    50: '#766bc4',
    500: '#2533a9',
    950: '#000000',
  },
}

SCSS

$custom: #2533a9;
$custom-light: #766bc4;
$custom-dark: #000000;

JSON

{
  "hex": "#2533a9",
  "rgb": {
    "r": 37,
    "g": 51,
    "b": 169
  },
  "hsl": {
    "h": 233.636,
    "s": 64.078,
    "l": 40.392
  },
  "oklch": {
    "l": 0.3983,
    "c": 0.18631,
    "h": 269.7
  },
  "luminance": 0.05626
}

Semantic roles & 50–950 ramp

primary

#2533A9

secondary

#C4BA65

accent

#D541E7

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0613

muted

#7C7A82

Preview Lab

Preview with #2533A9

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

Preview Lab → · Contrast checker → · Palette generator →