#2B66C0#2B66C0

#2B66C0 is a mid, vivid blue. Relative luminance 0.138; OKLCH L 52.1% C 0.154 H 258.9°. Best body text is #FFFFFF at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#2B66C0
RGB	rgb(43, 102, 192)
HSL	hsl(216, 63%, 46%)
HSV	hsv(216, 78%, 75%)
CMYK	cmyk(77.6%, 46.9%, 0%, 24.7%)
CIE-LAB	lab(43.97, 13.24, -52.65)
CIE-LCH	lch(43.97, 54.29, 284.11°)
OKLab	oklab(52.11% -0.0297 -0.1511)
OKLCH	oklch(52.11% 0.154 258.9)
XYZ	xyz(15.2586, 13.8203, 51.7224)
Luminance	0.1382 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B66C0 #C0852B

analogous

#2BB0C0 #2B66C0 #3B2BC0

triadic

#2B66C0 #C02B66 #66C02B

tetradic

#2B66C0 #C02BB0 #C0852B #2BC03B

square

#2B66C0 #C02BB0 #C0852B #2BC03B

split-complementary

#2B66C0 #C03B2B #B0C02B

monochromatic

#15315C #204B8E #2B66C0 #5086D8 #82A9E3

Accessibility & contrast

On white

5.58

#2B66C0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#2B66C0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B66C0

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B66C0	#FFFFFF	#000000	##FFFFFF
##2B66C0	1.00	5.58	3.76	5.58
#FFFFFF	5.58	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#356FC3

Deuteranopia (green-blind)

#0A62BE

Tritanopia (blue-blind)

#007B8A

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #2b66c0;
/* rgb */ color: rgb(43, 102, 192);
/* oklch */ color: oklch(52.1% 0.154 258.9);

Tailwind

colors: {
  custom: {
    50: '#7a91d4',
    500: '#2b66c0',
    950: '#000000',
  },
}

SCSS

$custom: #2b66c0;
$custom-light: #7a91d4;
$custom-dark: #000000;

JSON

{
  "hex": "#2b66c0",
  "rgb": {
    "r": 43,
    "g": 102,
    "b": 192
  },
  "hsl": {
    "h": 216.242,
    "s": 63.404,
    "l": 46.078
  },
  "oklch": {
    "l": 0.5211,
    "c": 0.15404,
    "h": 258.9
  },
  "luminance": 0.13822
}

Semantic roles & 50–950 ramp

primary

#2B66C0

secondary

#CCAC7B

accent

#A541E6

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #2B66C0

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

Preview Lab → · Contrast checker → · Palette generator →