#2553B9#2553B9

#2553B9 is a mid, vivid blue. Relative luminance 0.101; OKLCH L 47.3% C 0.169 H 263.2°. Best body text is #FFFFFF at 6.96:1 contrast (WCAG AA passes).

Color values

HEX	#2553B9
RGB	rgb(37, 83, 185)
HSL	hsl(221, 67%, 44%)
HSV	hsv(221, 80%, 73%)
CMYK	cmyk(80%, 55.1%, 0%, 27.5%)
CIE-LAB	lab(37.99, 22.31, -58.25)
CIE-LCH	lch(37.99, 62.38, 290.95°)
OKLab	oklab(47.33% -0.0201 -0.1681)
OKLCH	oklch(47.33% 0.169 263.2)
XYZ	xyz(12.6100, 10.0811, 47.1708)
Luminance	0.1008 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2553B9 #B98B25

analogous

#259DB9 #2553B9 #4125B9

triadic

#2553B9 #B92553 #53B925

tetradic

#2553B9 #B9259D #B98B25 #25B941

square

#2553B9 #B9259D #B98B25 #25B941

split-complementary

#2553B9 #B94125 #9DB925

monochromatic

#112553 #1B3C86 #2553B9 #4271D9 #7597E3

Accessibility & contrast

On white

6.96

#2553B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#2553B9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2553B9

6.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2553B9	#FFFFFF	#000000	##FFFFFF
##2553B9	1.00	6.96	3.02	6.96
#FFFFFF	6.96	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061BD

Deuteranopia (green-blind)

#0053B7

Tritanopia (blue-blind)

#006C7E

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #2553b9;
/* rgb */ color: rgb(37, 83, 185);
/* oklch */ color: oklch(47.3% 0.169 263.2);

Tailwind

colors: {
  custom: {
    50: '#7882cf',
    500: '#2553b9',
    950: '#000000',
  },
}

SCSS

$custom: #2553b9;
$custom-light: #7882cf;
$custom-dark: #000000;

JSON

{
  "hex": "#2553b9",
  "rgb": {
    "r": 37,
    "g": 83,
    "b": 185
  },
  "hsl": {
    "h": 221.351,
    "s": 66.667,
    "l": 43.529
  },
  "oklch": {
    "l": 0.4733,
    "c": 0.16929,
    "h": 263.2
  },
  "luminance": 0.10083
}

Semantic roles & 50–950 ramp

primary

#2553B9

secondary

#CBAE6F

accent

#B43EEA

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0A0A14

muted

#7C7C82

Preview Lab

Preview with #2553B9

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

Preview Lab → · Contrast checker → · Palette generator →