#4B5ECB#4B5ECB

#4B5ECB is a mid, vivid blue. Relative luminance 0.138; OKLCH L 52.7% C 0.169 H 271.9°. Best body text is #FFFFFF at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#4B5ECB
RGB	rgb(75, 94, 203)
HSL	hsl(231, 55%, 55%)
HSV	hsv(231, 63%, 80%)
CMYK	cmyk(63.1%, 53.7%, 0%, 20.4%)
CIE-LAB	lab(43.96, 26.97, -58.95)
CIE-LCH	lch(43.96, 64.83, 294.58°)
OKLab	oklab(52.72% 0.0056 -0.1692)
OKLCH	oklch(52.72% 0.169 271.9)
XYZ	xyz(17.6802, 13.8115, 58.2225)
Luminance	0.1381 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B5ECB #CBB84B

analogous

#4B9ECB #4B5ECB #784BCB

triadic

#4B5ECB #CB4B5E #5ECB4B

tetradic

#4B5ECB #CB4B9E #CBB84B #4BCB78

square

#4B5ECB #CB4B9E #CBB84B #4BCB78

split-complementary

#4B5ECB #CB784B #9ECB4B

monochromatic

#233079 #3142A8 #4B5ECB #7A88D9 #AAB3E6

Accessibility & contrast

On white

5.58

#4B5ECB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#4B5ECB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B5ECB

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B5ECB	#FFFFFF	#000000	##FFFFFF
##4B5ECB	1.00	5.58	3.76	5.58
#FFFFFF	5.58	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#126ECF

Deuteranopia (green-blind)

#0062C9

Tritanopia (blue-blind)

#00788B

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #4b5ecb;
/* rgb */ color: rgb(75, 94, 203);
/* oklch */ color: oklch(52.7% 0.169 271.9);

Tailwind

colors: {
  custom: {
    50: '#8a8bdc',
    500: '#4b5ecb',
    950: '#000000',
  },
}

SCSS

$custom: #4b5ecb;
$custom-light: #8a8bdc;
$custom-dark: #000000;

JSON

{
  "hex": "#4b5ecb",
  "rgb": {
    "r": 75,
    "g": 94,
    "b": 203
  },
  "hsl": {
    "h": 231.094,
    "s": 55.172,
    "l": 54.51
  },
  "oklch": {
    "l": 0.52723,
    "c": 0.16932,
    "h": 271.9
  },
  "luminance": 0.13813
}

Semantic roles & 50–950 ramp

primary

#4B5ECB

secondary

#D4CC9E

accent

#C849DF

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #4B5ECB

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

Preview Lab → · Contrast checker → · Palette generator →