#2B5BD0#2B5BD0

#2B5BD0 is a mid, vivid blue. Relative luminance 0.126; OKLCH L 51.0% C 0.189 H 264.0°. Best body text is #FFFFFF at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#2B5BD0
RGB	rgb(43, 91, 208)
HSL	hsl(223, 66%, 49%)
HSV	hsv(223, 79%, 82%)
CMYK	cmyk(79.3%, 56.2%, 0%, 18.4%)
CIE-LAB	lab(42.07, 26.44, -64.96)
CIE-LCH	lch(42.07, 70.13, 292.15°)
OKLab	oklab(51.02% -0.0198 -0.1876)
OKLCH	oklch(51.02% 0.189 264)
XYZ	xyz(16.1185, 12.5479, 61.2348)
Luminance	0.1255 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B5BD0 #D0A02B

analogous

#2BAED0 #2B5BD0 #4D2BD0

triadic

#2B5BD0 #D02B5B #5BD02B

tetradic

#2B5BD0 #D02BAE #D0A02B #2BD04D

square

#2B5BD0 #D02BAE #D0A02B #2BD04D

split-complementary

#2B5BD0 #D04D2B #AED02B

monochromatic

#162F6B #21459D #2B5BD0 #5B81DD #8EA8E8

Accessibility & contrast

On white

5.98

#2B5BD0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#2B5BD0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B5BD0

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B5BD0	#FFFFFF	#000000	##FFFFFF
##2B5BD0	1.00	5.98	3.51	5.98
#FFFFFF	5.98	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BD4

Deuteranopia (green-blind)

#005CCE

Tritanopia (blue-blind)

#00788C

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #2b5bd0;
/* rgb */ color: rgb(43, 91, 208);
/* oklch */ color: oklch(51.0% 0.189 264.0);

Tailwind

colors: {
  custom: {
    50: '#7f88df',
    500: '#2b5bd0',
    950: '#000000',
  },
}

SCSS

$custom: #2b5bd0;
$custom-light: #7f88df;
$custom-dark: #000000;

JSON

{
  "hex": "#2b5bd0",
  "rgb": {
    "r": 43,
    "g": 91,
    "b": 208
  },
  "hsl": {
    "h": 222.545,
    "s": 65.737,
    "l": 49.216
  },
  "oklch": {
    "l": 0.51017,
    "c": 0.18861,
    "h": 264
  },
  "luminance": 0.1255
}

Semantic roles & 50–950 ramp

primary

#2B5BD0

secondary

#D2BB85

accent

#B73FE9

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #2B5BD0

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

Preview Lab → · Contrast checker → · Palette generator →