#2B55BD#2B55BD

#2B55BD is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.3% C 0.171 H 264.3°. Best body text is #FFFFFF at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#2B55BD
RGB	rgb(43, 85, 189)
HSL	hsl(223, 63%, 45%)
HSV	hsv(223, 77%, 74%)
CMYK	cmyk(77.2%, 55%, 0%, 25.9%)
CIE-LAB	lab(39.04, 23.16, -58.87)
CIE-LCH	lch(39.04, 63.26, 291.47°)
OKLab	oklab(48.28% -0.017 -0.1698)
OKLCH	oklch(48.28% 0.171 264.3)
XYZ	xyz(13.4268, 10.6832, 49.4887)
Luminance	0.1069 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B55BD #BD932B

analogous

#2B9EBD #2B55BD #4A2BBD

triadic

#2B55BD #BD2B55 #55BD2B

tetradic

#2B55BD #BD2B9E #BD932B #2BBD4A

square

#2B55BD #BD2B9E #BD932B #2BBD4A

split-complementary

#2B55BD #BD4A2B #9EBD2B

monochromatic

#142859 #203F8B #2B55BD #4E76D7 #809CE2

Accessibility & contrast

On white

6.69

#2B55BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#2B55BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B55BD

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B55BD	#FFFFFF	#000000	##FFFFFF
##2B55BD	1.00	6.69	3.14	6.69
#FFFFFF	6.69	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063C1

Deuteranopia (green-blind)

#0056BB

Tritanopia (blue-blind)

#006F80

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #2b55bd;
/* rgb */ color: rgb(43, 85, 189);
/* oklch */ color: oklch(48.3% 0.171 264.3);

Tailwind

colors: {
  custom: {
    50: '#7a84d2',
    500: '#2b55bd',
    950: '#000000',
  },
}

SCSS

$custom: #2b55bd;
$custom-light: #7a84d2;
$custom-dark: #000000;

JSON

{
  "hex": "#2b55bd",
  "rgb": {
    "r": 43,
    "g": 85,
    "b": 189
  },
  "hsl": {
    "h": 222.74,
    "s": 62.931,
    "l": 45.49
  },
  "oklch": {
    "l": 0.4828,
    "c": 0.17062,
    "h": 264.3
  },
  "luminance": 0.10685
}

Semantic roles & 50–950 ramp

primary

#2B55BD

secondary

#CBB379

accent

#B742E6

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #2B55BD

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

Preview Lab → · Contrast checker → · Palette generator →