#2C66B9#2C66B9

#2C66B9 is a mid, vivid blue. Relative luminance 0.135; OKLCH L 51.7% C 0.144 H 257.9°. Best body text is #FFFFFF at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#2C66B9
RGB	rgb(44, 102, 185)
HSL	hsl(215, 62%, 45%)
HSV	hsv(215, 76%, 73%)
CMYK	cmyk(76.2%, 44.9%, 0%, 27.5%)
CIE-LAB	lab(43.56, 10.69, -49.24)
CIE-LCH	lch(43.56, 50.38, 282.25°)
OKLab	oklab(51.66% -0.0303 -0.1411)
OKLCH	oklch(51.66% 0.144 257.9)
XYZ	xyz(14.5438, 13.5393, 47.7364)
Luminance	0.1354 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2C66B9 #B97F2C

analogous

#2CADB9 #2C66B9 #382CB9

triadic

#2C66B9 #B92C66 #66B92C

tetradic

#2C66B9 #B92CAD #B97F2C #2CB938

square

#2C66B9 #B92CAD #B97F2C #2CB938

split-complementary

#2C66B9 #B9382C #ADB92C

monochromatic

#142F56 #204B88 #2C66B9 #4D85D5 #7FA7E1

Accessibility & contrast

On white

5.66

#2C66B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#2C66B9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2C66B9

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2C66B9	#FFFFFF	#000000	##FFFFFF
##2C66B9	1.00	5.66	3.71	5.66
#FFFFFF	5.66	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B6EBC

Deuteranopia (green-blind)

#1E61B7

Tritanopia (blue-blind)

#007A86

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #2c66b9;
/* rgb */ color: rgb(44, 102, 185);
/* oklch */ color: oklch(51.7% 0.144 257.9);

Tailwind

colors: {
  custom: {
    50: '#7991ce',
    500: '#2c66b9',
    950: '#000000',
  },
}

SCSS

$custom: #2c66b9;
$custom-light: #7991ce;
$custom-dark: #000000;

JSON

{
  "hex": "#2c66b9",
  "rgb": {
    "r": 44,
    "g": 102,
    "b": 185
  },
  "hsl": {
    "h": 215.319,
    "s": 61.572,
    "l": 44.902
  },
  "oklch": {
    "l": 0.51661,
    "c": 0.14431,
    "h": 257.9
  },
  "luminance": 0.13541
}

Semantic roles & 50–950 ramp

primary

#2C66B9

secondary

#C9A878

accent

#A243E5

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0A0C14

muted

#7C7D82

Preview Lab

Preview with #2C66B9

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

Preview Lab → · Contrast checker → · Palette generator →