#2A51BD#2A51BD

#2A51BD is a mid, vivid blue. Relative luminance 0.101; OKLCH L 47.4% C 0.176 H 265.1°. Best body text is #FFFFFF at 6.98:1 contrast (WCAG AA passes).

Color values

HEX	#2A51BD
RGB	rgb(42, 81, 189)
HSL	hsl(224, 64%, 45%)
HSV	hsv(224, 78%, 74%)
CMYK	cmyk(77.8%, 57.1%, 0%, 25.9%)
CIE-LAB	lab(37.93, 25.67, -60.68)
CIE-LCH	lch(37.93, 65.89, 292.93°)
OKLab	oklab(47.43% -0.0149 -0.1752)
OKLCH	oklch(47.43% 0.176 265.1)
XYZ	xyz(13.0793, 10.0497, 49.3847)
Luminance	0.1005 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A51BD #BD962A

analogous

#2A9ABD #2A51BD #4D2ABD

triadic

#2A51BD #BD2A51 #51BD2A

tetradic

#2A51BD #BD2A9A #BD962A #2ABD4D

square

#2A51BD #BD2A9A #BD962A #2ABD4D

split-complementary

#2A51BD #BD4D2A #9ABD2A

monochromatic

#142659 #1F3C8B #2A51BD #4D72D7 #7F99E3

Accessibility & contrast

On white

6.98

#2A51BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#2A51BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2A51BD

6.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A51BD	#FFFFFF	#000000	##FFFFFF
##2A51BD	1.00	6.98	3.01	6.98
#FFFFFF	6.98	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060C1

Deuteranopia (green-blind)

#0053BB

Tritanopia (blue-blind)

#006C7F

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #2a51bd;
/* rgb */ color: rgb(42, 81, 189);
/* oklch */ color: oklch(47.4% 0.176 265.1);

Tailwind

colors: {
  custom: {
    50: '#7a81d2',
    500: '#2a51bd',
    950: '#000000',
  },
}

SCSS

$custom: #2a51bd;
$custom-light: #7a81d2;
$custom-dark: #000000;

JSON

{
  "hex": "#2a51bd",
  "rgb": {
    "r": 42,
    "g": 81,
    "b": 189
  },
  "hsl": {
    "h": 224.082,
    "s": 63.636,
    "l": 45.294
  },
  "oklch": {
    "l": 0.47434,
    "c": 0.17581,
    "h": 265.1
  },
  "luminance": 0.10051
}

Semantic roles & 50–950 ramp

primary

#2A51BD

secondary

#CBB578

accent

#BB41E7

background

#F8F7FD

surface

#EFEEFA

border

#CAC9D3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #2A51BD

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

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