#2A51C4#2A51C4

#2A51C4 is a mid, vivid blue. Relative luminance 0.104; OKLCH L 48.0% C 0.185 H 265.5°. Best body text is #FFFFFF at 6.83:1 contrast (WCAG AA passes).

Color values

HEX	#2A51C4
RGB	rgb(42, 81, 196)
HSL	hsl(225, 65%, 47%)
HSV	hsv(225, 79%, 77%)
CMYK	cmyk(78.6%, 58.7%, 0%, 23.1%)
CIE-LAB	lab(38.48, 28.32, -63.87)
CIE-LCH	lch(38.48, 69.87, 293.91°)
OKLab	oklab(48.02% -0.0146 -0.1845)
OKLCH	oklch(48.02% 0.185 265.5)
XYZ	xyz(13.8576, 10.3610, 53.4834)
Luminance	0.1036 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A51C4 #C49D2A

analogous

#2A9EC4 #2A51C4 #502AC4

triadic

#2A51C4 #C42A51 #51C42A

tetradic

#2A51C4 #C42A9E #C49D2A #2AC450

square

#2A51C4 #C42A9E #C49D2A #2AC450

split-complementary

#2A51C4 #C4502A #9EC42A

monochromatic

#14275F #1F3C92 #2A51C4 #5174DA #849CE5

Accessibility & contrast

On white

6.83

#2A51C4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#2A51C4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2A51C4

6.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A51C4	#FFFFFF	#000000	##FFFFFF
##2A51C4	1.00	6.83	3.07	6.83
#FFFFFF	6.83	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062C8

Deuteranopia (green-blind)

#0054C2

Tritanopia (blue-blind)

#006E82

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #2a51c4;
/* rgb */ color: rgb(42, 81, 196);
/* oklch */ color: oklch(48.0% 0.185 265.5);

Tailwind

colors: {
  custom: {
    50: '#7c81d7',
    500: '#2a51c4',
    950: '#000000',
  },
}

SCSS

$custom: #2a51c4;
$custom-light: #7c81d7;
$custom-dark: #000000;

JSON

{
  "hex": "#2a51c4",
  "rgb": {
    "r": 42,
    "g": 81,
    "b": 196
  },
  "hsl": {
    "h": 224.805,
    "s": 64.706,
    "l": 46.667
  },
  "oklch": {
    "l": 0.48019,
    "c": 0.18512,
    "h": 265.5
  },
  "luminance": 0.10363
}

Semantic roles & 50–950 ramp

primary

#2A51C4

secondary

#CEB97C

accent

#BD40E8

background

#F8F7FD

surface

#EFEEFA

border

#CAC9D3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #2A51C4

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

Preview Lab → · Contrast checker → · Palette generator →