#4E55CB#4E55CB

#4E55CB is a mid, vivid blue. Relative luminance 0.124; OKLCH L 51.2% C 0.180 H 275.5°. Best body text is #FFFFFF at 6.02:1 contrast (WCAG AA passes).

Color values

HEX	#4E55CB
RGB	rgb(78, 85, 203)
HSL	hsl(237, 55%, 55%)
HSV	hsv(237, 62%, 80%)
CMYK	cmyk(61.6%, 58.1%, 0%, 20.4%)
CIE-LAB	lab(41.89, 33.12, -62.30)
CIE-LCH	lch(41.89, 70.56, 297.99°)
OKLab	oklab(51.22% 0.0172 -0.1791)
OKLCH	oklch(51.22% 0.18 275.5)
XYZ	xyz(17.1664, 12.4271, 57.9824)
Luminance	0.1243 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E55CB #CBC44E

analogous

#4E93CB #4E55CB #854ECB

triadic

#4E55CB #CB4E55 #55CB4E

tetradic

#4E55CB #CB4E93 #CBC44E #4ECB85

square

#4E55CB #CB4E93 #CBC44E #4ECB85

split-complementary

#4E55CB #CB854E #93CB4E

monochromatic

#24297B #3239AA #4E55CB #7D82D9 #ADB0E7

Accessibility & contrast

On white

6.02

#4E55CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#4E55CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E55CB

6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E55CB	#FFFFFF	#000000	##FFFFFF
##4E55CB	1.00	6.02	3.49	6.02
#FFFFFF	6.02	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068CF

Deuteranopia (green-blind)

#005EC9

Tritanopia (blue-blind)

#007288

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #4e55cb;
/* rgb */ color: rgb(78, 85, 203);
/* oklch */ color: oklch(51.2% 0.180 275.5);

Tailwind

colors: {
  custom: {
    50: '#8c85dc',
    500: '#4e55cb',
    950: '#000000',
  },
}

SCSS

$custom: #4e55cb;
$custom-light: #8c85dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4e55cb",
  "rgb": {
    "r": 78,
    "g": 85,
    "b": 203
  },
  "hsl": {
    "h": 236.64,
    "s": 54.585,
    "l": 55.098
  },
  "oklch": {
    "l": 0.51223,
    "c": 0.17993,
    "h": 275.5
  },
  "luminance": 0.12428
}

Semantic roles & 50–950 ramp

primary

#4E55CB

secondary

#D5D2A0

accent

#D64ADE

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4E55CB

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

Preview Lab → · Contrast checker → · Palette generator →