#4C55CB#4C55CB

#4C55CB is a mid, vivid blue. Relative luminance 0.123; OKLCH L 51.1% C 0.180 H 274.7°. Best body text is #FFFFFF at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#4C55CB
RGB	rgb(76, 85, 203)
HSL	hsl(236, 55%, 55%)
HSV	hsv(236, 63%, 80%)
CMYK	cmyk(62.6%, 58.1%, 0%, 20.4%)
CIE-LAB	lab(41.76, 32.79, -62.52)
CIE-LCH	lch(41.76, 70.60, 297.67°)
OKLab	oklab(51.09% 0.0149 -0.1798)
OKLCH	oklch(51.09% 0.18 274.7)
XYZ	xyz(17.0049, 12.3439, 57.9748)
Luminance	0.1235 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C55CB #CBC24C

analogous

#4C95CB #4C55CB #834CCB

triadic

#4C55CB #CB4C55 #55CB4C

tetradic

#4C55CB #CB4C95 #CBC24C #4CCB83

square

#4C55CB #CB4C95 #CBC24C #4CCB83

split-complementary

#4C55CB #CB834C #95CB4C

monochromatic

#232979 #313AA9 #4C55CB #7B82D9 #ABAFE7

Accessibility & contrast

On white

6.05

#4C55CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#4C55CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C55CB

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C55CB	#FFFFFF	#000000	##FFFFFF
##4C55CB	1.00	6.05	3.47	6.05
#FFFFFF	6.05	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068CF

Deuteranopia (green-blind)

#005DC9

Tritanopia (blue-blind)

#007288

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #4c55cb;
/* rgb */ color: rgb(76, 85, 203);
/* oklch */ color: oklch(51.1% 0.180 274.7);

Tailwind

colors: {
  custom: {
    50: '#8b85dc',
    500: '#4c55cb',
    950: '#000000',
  },
}

SCSS

$custom: #4c55cb;
$custom-light: #8b85dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4c55cb",
  "rgb": {
    "r": 76,
    "g": 85,
    "b": 203
  },
  "hsl": {
    "h": 235.748,
    "s": 54.978,
    "l": 54.706
  },
  "oklch": {
    "l": 0.51093,
    "c": 0.18042,
    "h": 274.7
  },
  "luminance": 0.12345
}

Semantic roles & 50–950 ramp

primary

#4C55CB

secondary

#D4D09F

accent

#D449DE

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4C55CB

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

Preview Lab → · Contrast checker → · Palette generator →