#2B55BC#2B55BC

#2B55BC is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.2% C 0.169 H 264.2°. Best body text is #FFFFFF at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#2B55BC
RGB	rgb(43, 85, 188)
HSL	hsl(223, 63%, 45%)
HSV	hsv(223, 77%, 74%)
CMYK	cmyk(77.1%, 54.8%, 0%, 26.3%)
CIE-LAB	lab(38.97, 22.78, -58.41)
CIE-LCH	lch(38.97, 62.69, 291.30°)
OKLab	oklab(48.2% -0.017 -0.1684)
OKLCH	oklch(48.2% 0.169 264.2)
XYZ	xyz(13.3186, 10.6399, 48.9190)
Luminance	0.1064 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B55BC #BC922B

analogous

#2B9DBC #2B55BC #4A2BBC

triadic

#2B55BC #BC2B55 #55BC2B

tetradic

#2B55BC #BC2B9D #BC922B #2BBC4A

square

#2B55BC #BC2B9D #BC922B #2BBC4A

split-complementary

#2B55BC #BC4A2B #9DBC2B

monochromatic

#142858 #203E8A #2B55BC #4E75D6 #809CE2

Accessibility & contrast

On white

6.71

#2B55BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#2B55BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B55BC

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B55BC	#FFFFFF	#000000	##FFFFFF
##2B55BC	1.00	6.71	3.13	6.71
#FFFFFF	6.71	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063C0

Deuteranopia (green-blind)

#0055BA

Tritanopia (blue-blind)

#006E80

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #2b55bc;
/* rgb */ color: rgb(43, 85, 188);
/* oklch */ color: oklch(48.2% 0.169 264.2);

Tailwind

colors: {
  custom: {
    50: '#7a84d1',
    500: '#2b55bc',
    950: '#000000',
  },
}

SCSS

$custom: #2b55bc;
$custom-light: #7a84d1;
$custom-dark: #000000;

JSON

{
  "hex": "#2b55bc",
  "rgb": {
    "r": 43,
    "g": 85,
    "b": 188
  },
  "hsl": {
    "h": 222.621,
    "s": 62.771,
    "l": 45.294
  },
  "oklch": {
    "l": 0.48201,
    "c": 0.16928,
    "h": 264.2
  },
  "luminance": 0.10641
}

Semantic roles & 50–950 ramp

primary

#2B55BC

secondary

#CBB378

accent

#B642E6

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #2B55BC

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

Preview Lab → · Contrast checker → · Palette generator →