#4A51CF#4A51CF

#4A51CF is a mid, vivid blue. Relative luminance 0.118; OKLCH L 50.6% C 0.191 H 274.8°. Best body text is #FFFFFF at 6.23:1 contrast (WCAG AA passes).

Color values

HEX	#4A51CF
RGB	rgb(74, 81, 207)
HSL	hsl(237, 58%, 55%)
HSV	hsv(237, 64%, 81%)
CMYK	cmyk(64.3%, 60.9%, 0%, 18.8%)
CIE-LAB	lab(40.97, 36.30, -66.12)
CIE-LCH	lch(40.97, 75.43, 298.77°)
OKLab	oklab(50.57% 0.016 -0.1905)
OKLCH	oklch(50.57% 0.191 274.8)
XYZ	xyz(17.0252, 11.8442, 60.4084)
Luminance	0.1185 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4A51CF #CFC84A

analogous

#4A94CF #4A51CF #854ACF

triadic

#4A51CF #CF4A51 #51CF4A

tetradic

#4A51CF #CF4A94 #CFC84A #4ACF85

square

#4A51CF #CF4A94 #CFC84A #4ACF85

split-complementary

#4A51CF #CF854A #94CF4A

monochromatic

#21267D #2E35AE #4A51CF #7A80DC #ABAEE9

Accessibility & contrast

On white

6.23

#4A51CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#4A51CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4A51CF

6.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4A51CF	#FFFFFF	#000000	##FFFFFF
##4A51CF	1.00	6.23	3.37	6.23
#FFFFFF	6.23	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067D3

Deuteranopia (green-blind)

#005BCD

Tritanopia (blue-blind)

#007088

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #4a51cf;
/* rgb */ color: rgb(74, 81, 207);
/* oklch */ color: oklch(50.6% 0.191 274.8);

Tailwind

colors: {
  custom: {
    50: '#8b82df',
    500: '#4a51cf',
    950: '#000000',
  },
}

SCSS

$custom: #4a51cf;
$custom-light: #8b82df;
$custom-dark: #000000;

JSON

{
  "hex": "#4a51cf",
  "rgb": {
    "r": 74,
    "g": 81,
    "b": 207
  },
  "hsl": {
    "h": 236.842,
    "s": 58.079,
    "l": 55.098
  },
  "oklch": {
    "l": 0.50571,
    "c": 0.19113,
    "h": 274.8
  },
  "luminance": 0.11846
}

Semantic roles & 50–950 ramp

primary

#4A51CF

secondary

#D6D39F

accent

#D946E1

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #4A51CF

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

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