#2A51B2#2A51B2

#2A51B2 is a mid, vivid blue. Relative luminance 0.096; OKLCH L 46.5% C 0.161 H 264.4°. Best body text is #FFFFFF at 7.20:1 contrast (WCAG AA passes).

Color values

HEX	#2A51B2
RGB	rgb(42, 81, 178)
HSL	hsl(223, 62%, 43%)
HSV	hsv(223, 76%, 70%)
CMYK	cmyk(76.4%, 54.5%, 0%, 30.2%)
CIE-LAB	lab(37.10, 21.48, -55.57)
CIE-LCH	lch(37.10, 59.58, 291.14°)
OKLab	oklab(46.54% -0.0156 -0.1601)
OKLCH	oklch(46.54% 0.161 264.4)
XYZ	xyz(11.9303, 9.5901, 43.3332)
Luminance	0.0959 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A51B2 #B28B2A

analogous

#2A95B2 #2A51B2 #472AB2

triadic

#2A51B2 #B22A51 #51B22A

tetradic

#2A51B2 #B22A95 #B28B2A #2AB247

square

#2A51B2 #B22A95 #B28B2A #2AB247

split-complementary

#2A51B2 #B2472A #95B22A

monochromatic

#13244F #1E3A80 #2A51B2 #466ED3 #7795DF

Accessibility & contrast

On white

7.20

#2A51B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#2A51B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A51B2

7.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A51B2	#FFFFFF	#000000	##FFFFFF
##2A51B2	1.00	7.20	2.92	7.20
#FFFFFF	7.20	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EB5

Deuteranopia (green-blind)

#0051B0

Tritanopia (blue-blind)

#006979

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #2a51b2;
/* rgb */ color: rgb(42, 81, 178);
/* oklch */ color: oklch(46.5% 0.161 264.4);

Tailwind

colors: {
  custom: {
    50: '#7881ca',
    500: '#2a51b2',
    950: '#000000',
  },
}

SCSS

$custom: #2a51b2;
$custom-light: #7881ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2a51b2",
  "rgb": {
    "r": 42,
    "g": 81,
    "b": 178
  },
  "hsl": {
    "h": 222.794,
    "s": 61.818,
    "l": 43.137
  },
  "oklch": {
    "l": 0.46541,
    "c": 0.16091,
    "h": 264.4
  },
  "luminance": 0.09591
}

Semantic roles & 50–950 ramp

primary

#2A51B2

secondary

#C7AE71

accent

#B643E5

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2A51B2

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

Preview Lab → · Contrast checker → · Palette generator →