#4D55BB#4D55BB

#4D55BB is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.9% C 0.158 H 275.7°. Best body text is #FFFFFF at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#4D55BB
RGB	rgb(77, 85, 187)
HSL	hsl(236, 45%, 52%)
HSV	hsv(236, 59%, 73%)
CMYK	cmyk(58.8%, 54.5%, 0%, 26.7%)
CIE-LAB	lab(40.67, 27.57, -54.98)
CIE-LCH	lch(40.67, 61.50, 296.63°)
OKLab	oklab(49.94% 0.0157 -0.1576)
OKLCH	oklch(49.94% 0.158 275.7)
XYZ	xyz(15.2758, 11.6615, 48.4500)
Luminance	0.1166 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D55BB #BBB34D

analogous

#4D8CBB #4D55BB #7C4DBB

triadic

#4D55BB #BB4D55 #55BB4D

tetradic

#4D55BB #BB4D8C #BBB34D #4DBB7C

square

#4D55BB #BB4D8C #BBB34D #4DBB7C

split-complementary

#4D55BB #BB7C4D #8CBB4D

monochromatic

#272C66 #383F93 #4D55BB #797FCC #A6AADD

Accessibility & contrast

On white

6.30

#4D55BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#4D55BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4D55BB

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D55BB	#FFFFFF	#000000	##FFFFFF
##4D55BB	1.00	6.30	3.33	6.30
#FFFFFF	6.30	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1065BF

Deuteranopia (green-blind)

#005BB9

Tritanopia (blue-blind)

#006D80

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #4d55bb;
/* rgb */ color: rgb(77, 85, 187);
/* oklch */ color: oklch(49.9% 0.158 275.7);

Tailwind

colors: {
  custom: {
    50: '#8984d0',
    500: '#4d55bb',
    950: '#000000',
  },
}

SCSS

$custom: #4d55bb;
$custom-light: #8984d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4d55bb",
  "rgb": {
    "r": 77,
    "g": 85,
    "b": 187
  },
  "hsl": {
    "h": 235.636,
    "s": 44.715,
    "l": 51.765
  },
  "oklch": {
    "l": 0.49938,
    "c": 0.15837,
    "h": 275.7
  },
  "luminance": 0.11663
}

Semantic roles & 50–950 ramp

primary

#4D55BB

secondary

#CAC79A

accent

#CB53D4

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #4D55BB

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

Preview Lab → · Contrast checker → · Palette generator →