#4B5FCB#4B5FCB

#4B5FCB is a mid, vivid blue. Relative luminance 0.140; OKLCH L 52.9% C 0.168 H 271.6°. Best body text is #FFFFFF at 5.53:1 contrast (WCAG AA passes).

Color values

HEX	#4B5FCB
RGB	rgb(75, 95, 203)
HSL	hsl(231, 55%, 55%)
HSV	hsv(231, 63%, 80%)
CMYK	cmyk(63.1%, 53.2%, 0%, 20.4%)
CIE-LAB	lab(44.22, 26.34, -58.53)
CIE-LCH	lch(44.22, 64.19, 294.22°)
OKLab	oklab(52.92% 0.0046 -0.168)
OKLCH	oklch(52.92% 0.168 271.6)
XYZ	xyz(17.7697, 13.9905, 58.2523)
Luminance	0.1399 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B5FCB #CBB74B

analogous

#4B9FCB #4B5FCB #774BCB

triadic

#4B5FCB #CB4B5F #5FCB4B

tetradic

#4B5FCB #CB4B9F #CBB74B #4BCB77

square

#4B5FCB #CB4B9F #CBB74B #4BCB77

split-complementary

#4B5FCB #CB774B #9FCB4B

monochromatic

#233079 #3143A8 #4B5FCB #7A89D9 #AAB3E6

Accessibility & contrast

On white

5.53

#4B5FCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.80

#4B5FCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B5FCB

5.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B5FCB	#FFFFFF	#000000	##FFFFFF
##4B5FCB	1.00	5.53	3.80	5.53
#FFFFFF	5.53	1.00	21.00	1.00
#000000	3.80	21.00	1.00	21.00
##FFFFFF	5.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#176ECF

Deuteranopia (green-blind)

#0063C9

Tritanopia (blue-blind)

#00788C

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #4b5fcb;
/* rgb */ color: rgb(75, 95, 203);
/* oklch */ color: oklch(52.9% 0.168 271.6);

Tailwind

colors: {
  custom: {
    50: '#8a8cdc',
    500: '#4b5fcb',
    950: '#000000',
  },
}

SCSS

$custom: #4b5fcb;
$custom-light: #8a8cdc;
$custom-dark: #000000;

JSON

{
  "hex": "#4b5fcb",
  "rgb": {
    "r": 75,
    "g": 95,
    "b": 203
  },
  "hsl": {
    "h": 230.625,
    "s": 55.172,
    "l": 54.51
  },
  "oklch": {
    "l": 0.52917,
    "c": 0.16805,
    "h": 271.6
  },
  "luminance": 0.13992
}

Semantic roles & 50–950 ramp

primary

#4B5FCB

secondary

#D4CC9E

accent

#C749DF

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #4B5FCB

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

Preview Lab → · Contrast checker → · Palette generator →