#4357CE#4357CE

#4357CE is a mid, vivid blue. Relative luminance 0.125; OKLCH L 51.2% C 0.184 H 271.1°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#4357CE
RGB	rgb(67, 87, 206)
HSL	hsl(231, 59%, 54%)
HSV	hsv(231, 67%, 81%)
CMYK	cmyk(67.5%, 57.8%, 0%, 19.2%)
CIE-LAB	lab(41.94, 31.17, -63.97)
CIE-LCH	lch(41.94, 71.16, 295.98°)
OKLab	oklab(51.16% 0.0036 -0.1843)
OKLCH	oklch(51.16% 0.184 271.1)
XYZ	xyz(16.8597, 12.4643, 59.8979)
Luminance	0.1247 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4357CE #CEBA43

analogous

#439CCE #4357CE #7443CE

triadic

#4357CE #CE4357 #57CE43

tetradic

#4357CE #CE439C #CEBA43 #43CE74

square

#4357CE #CE439C #CEBA43 #43CE74

split-complementary

#4357CE #CE7443 #9CCE43

monochromatic

#1F2C77 #2C3EA8 #4357CE #7482DB #A4AEE7

Accessibility & contrast

On white

6.01

#4357CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#4357CE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4357CE

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4357CE	#FFFFFF	#000000	##FFFFFF
##4357CE	1.00	6.01	3.49	6.01
#FFFFFF	6.01	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069D2

Deuteranopia (green-blind)

#005DCC

Tritanopia (blue-blind)

#00748A

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #4357ce;
/* rgb */ color: rgb(67, 87, 206);
/* oklch */ color: oklch(51.2% 0.184 271.1);

Tailwind

colors: {
  custom: {
    50: '#8786de',
    500: '#4357ce',
    950: '#000000',
  },
}

SCSS

$custom: #4357ce;
$custom-light: #8786de;
$custom-dark: #000000;

JSON

{
  "hex": "#4357ce",
  "rgb": {
    "r": 67,
    "g": 87,
    "b": 206
  },
  "hsl": {
    "h": 231.367,
    "s": 58.65,
    "l": 53.529
  },
  "oklch": {
    "l": 0.51161,
    "c": 0.18429,
    "h": 271.1
  },
  "luminance": 0.12466
}

Semantic roles & 50–950 ramp

primary

#4357CE

secondary

#D4CC99

accent

#CB46E2

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4357CE

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

Preview Lab → · Contrast checker → · Palette generator →