#4F54CB#4F54CB

#4F54CB is a mid, vivid blue. Relative luminance 0.123; OKLCH L 51.1% C 0.181 H 276.1°. Best body text is #FFFFFF at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#4F54CB
RGB	rgb(79, 84, 203)
HSL	hsl(238, 54%, 55%)
HSV	hsv(238, 61%, 80%)
CMYK	cmyk(61.1%, 58.6%, 0%, 20.4%)
CIE-LAB	lab(41.71, 33.90, -62.59)
CIE-LCH	lch(41.71, 71.18, 298.44°)
OKLab	oklab(51.11% 0.0192 -0.1799)
OKLCH	oklch(51.11% 0.181 276.1)
XYZ	xyz(17.1708, 12.3134, 57.9602)
Luminance	0.1231 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F54CB #CBC64F

analogous

#4F92CB #4F54CB #884FCB

triadic

#4F54CB #CB4F54 #54CB4F

tetradic

#4F54CB #CB4F92 #CBC64F #4FCB88

square

#4F54CB #CB4F92 #CBC64F #4FCB88

split-complementary

#4F54CB #CB884F #92CB4F

monochromatic

#24287B #3237AA #4F54CB #7E82D9 #ADB0E7

Accessibility & contrast

On white

6.06

#4F54CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#4F54CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F54CB

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F54CB	#FFFFFF	#000000	##FFFFFF
##4F54CB	1.00	6.06	3.46	6.06
#FFFFFF	6.06	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068CF

Deuteranopia (green-blind)

#005DC9

Tritanopia (blue-blind)

#007187

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #4f54cb;
/* rgb */ color: rgb(79, 84, 203);
/* oklch */ color: oklch(51.1% 0.181 276.1);

Tailwind

colors: {
  custom: {
    50: '#8c84dc',
    500: '#4f54cb',
    950: '#000000',
  },
}

SCSS

$custom: #4f54cb;
$custom-light: #8c84dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4f54cb",
  "rgb": {
    "r": 79,
    "g": 84,
    "b": 203
  },
  "hsl": {
    "h": 237.581,
    "s": 54.386,
    "l": 55.294
  },
  "oklch": {
    "l": 0.51109,
    "c": 0.18095,
    "h": 276.1
  },
  "luminance": 0.12315
}

Semantic roles & 50–950 ramp

primary

#4F54CB

secondary

#D5D3A1

accent

#D84ADE

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4F54CB

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

Preview Lab → · Contrast checker → · Palette generator →