#4F5BCB#4F5BCB

#4F5BCB is a mid, vivid blue. Relative luminance 0.135; OKLCH L 52.4% C 0.172 H 274.2°. Best body text is #FFFFFF at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#4F5BCB
RGB	rgb(79, 91, 203)
HSL	hsl(234, 54%, 55%)
HSV	hsv(234, 61%, 80%)
CMYK	cmyk(61.1%, 55.2%, 0%, 20.4%)
CIE-LAB	lab(43.44, 29.54, -59.78)
CIE-LCH	lch(43.44, 66.68, 296.30°)
OKLab	oklab(52.4% 0.0127 -0.1716)
OKLCH	oklch(52.4% 0.172 274.2)
XYZ	xyz(17.7415, 13.4548, 58.1504)
Luminance	0.1346 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F5BCB #CBBF4F

analogous

#4F99CB #4F5BCB #814FCB

triadic

#4F5BCB #CB4F5B #5BCB4F

tetradic

#4F5BCB #CB4F99 #CBBF4F #4FCB81

square

#4F5BCB #CB4F99 #CBBF4F #4FCB81

split-complementary

#4F5BCB #CB814F #99CB4F

monochromatic

#242D7B #323EAA #4F5BCB #7E87D9 #ADB3E7

Accessibility & contrast

On white

5.69

#4F5BCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#4F5BCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F5BCB

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F5BCB	#FFFFFF	#000000	##FFFFFF
##4F5BCB	1.00	5.69	3.69	5.69
#FFFFFF	5.69	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CCF

Deuteranopia (green-blind)

#0061C9

Tritanopia (blue-blind)

#00758A

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #4f5bcb;
/* rgb */ color: rgb(79, 91, 203);
/* oklch */ color: oklch(52.4% 0.172 274.2);

Tailwind

colors: {
  custom: {
    50: '#8c89dc',
    500: '#4f5bcb',
    950: '#000000',
  },
}

SCSS

$custom: #4f5bcb;
$custom-light: #8c89dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4f5bcb",
  "rgb": {
    "r": 79,
    "g": 91,
    "b": 203
  },
  "hsl": {
    "h": 234.194,
    "s": 54.386,
    "l": 55.294
  },
  "oklch": {
    "l": 0.52396,
    "c": 0.17208,
    "h": 274.2
  },
  "luminance": 0.13456
}

Semantic roles & 50–950 ramp

primary

#4F5BCB

secondary

#D5D0A1

accent

#CF4ADE

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4F5BCB

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

Preview Lab → · Contrast checker → · Palette generator →