#4951BB#4951BB

#4951BB is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.9% C 0.165 H 275.3°. Best body text is #FFFFFF at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#4951BB
RGB	rgb(73, 81, 187)
HSL	hsl(236, 46%, 51%)
HSV	hsv(236, 61%, 73%)
CMYK	cmyk(61%, 56.7%, 0%, 26.7%)
CIE-LAB	lab(39.39, 29.37, -57.06)
CIE-LCH	lch(39.39, 64.18, 297.23°)
OKLab	oklab(48.91% 0.0151 -0.1639)
OKLCH	oklch(48.91% 0.165 275.3)
XYZ	xyz(14.6568, 10.8880, 48.3333)
Luminance	0.1089 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4951BB #BBB349

analogous

#498ABB #4951BB #7A49BB

triadic

#4951BB #BB4951 #51BB49

tetradic

#4951BB #BB498A #BBB349 #49BB7A

square

#4951BB #BB498A #BBB349 #49BB7A

split-complementary

#4951BB #BB7A49 #8ABB49

monochromatic

#252A64 #363C91 #4951BB #767CCC #A2A6DC

Accessibility & contrast

On white

6.61

#4951BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#4951BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4951BB

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4951BB	#FFFFFF	#000000	##FFFFFF
##4951BB	1.00	6.61	3.18	6.61
#FFFFFF	6.61	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062BF

Deuteranopia (green-blind)

#0058B9

Tritanopia (blue-blind)

#006A7E

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #4951bb;
/* rgb */ color: rgb(73, 81, 187);
/* oklch */ color: oklch(48.9% 0.165 275.3);

Tailwind

colors: {
  custom: {
    50: '#8781d0',
    500: '#4951bb',
    950: '#000000',
  },
}

SCSS

$custom: #4951bb;
$custom-light: #8781d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4951bb",
  "rgb": {
    "r": 73,
    "g": 81,
    "b": 187
  },
  "hsl": {
    "h": 235.789,
    "s": 45.6,
    "l": 50.98
  },
  "oklch": {
    "l": 0.48912,
    "c": 0.16456,
    "h": 275.3
  },
  "luminance": 0.10889
}

Semantic roles & 50–950 ramp

primary

#4951BB

secondary

#C9C697

accent

#CC53D5

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #4951BB

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

Preview Lab → · Contrast checker → · Palette generator →