#2B53BC#2B53BC

#2B53BC is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.8% C 0.172 H 264.8°. Best body text is #FFFFFF at 6.85:1 contrast (WCAG AA passes).

Color values

HEX	#2B53BC
RGB	rgb(43, 83, 188)
HSL	hsl(223, 63%, 45%)
HSV	hsv(223, 77%, 74%)
CMYK	cmyk(77.1%, 55.9%, 0%, 26.3%)
CIE-LAB	lab(38.43, 24.09, -59.29)
CIE-LCH	lch(38.43, 63.99, 292.11°)
OKLab	oklab(47.79% -0.0156 -0.171)
OKLCH	oklch(47.79% 0.172 264.8)
XYZ	xyz(13.1634, 10.3294, 48.8672)
Luminance	0.1033 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B53BC #BC942B

analogous

#2B9CBC #2B53BC #4B2BBC

triadic

#2B53BC #BC2B53 #53BC2B

tetradic

#2B53BC #BC2B9C #BC942B #2BBC4B

square

#2B53BC #BC2B9C #BC942B #2BBC4B

split-complementary

#2B53BC #BC4B2B #9CBC2B

monochromatic

#142758 #203D8A #2B53BC #4E73D6 #809BE2

Accessibility & contrast

On white

6.85

#2B53BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#2B53BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B53BC

6.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B53BC	#FFFFFF	#000000	##FFFFFF
##2B53BC	1.00	6.85	3.07	6.85
#FFFFFF	6.85	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C0

Deuteranopia (green-blind)

#0054BA

Tritanopia (blue-blind)

#006D7F

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #2b53bc;
/* rgb */ color: rgb(43, 83, 188);
/* oklch */ color: oklch(47.8% 0.172 264.8);

Tailwind

colors: {
  custom: {
    50: '#7a82d1',
    500: '#2b53bc',
    950: '#000000',
  },
}

SCSS

$custom: #2b53bc;
$custom-light: #7a82d1;
$custom-dark: #000000;

JSON

{
  "hex": "#2b53bc",
  "rgb": {
    "r": 43,
    "g": 83,
    "b": 188
  },
  "hsl": {
    "h": 223.448,
    "s": 62.771,
    "l": 45.294
  },
  "oklch": {
    "l": 0.47793,
    "c": 0.17174,
    "h": 264.8
  },
  "luminance": 0.10331
}

Semantic roles & 50–950 ramp

primary

#2B53BC

secondary

#CBB478

accent

#B942E6

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #2B53BC

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

Preview Lab → · Contrast checker → · Palette generator →