#4357D3#4357D3

#4357D3 is a mid, vivid blue. Relative luminance 0.127; OKLCH L 51.6% C 0.191 H 271.1°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#4357D3
RGB	rgb(67, 87, 211)
HSL	hsl(232, 62%, 55%)
HSV	hsv(232, 68%, 83%)
CMYK	cmyk(68.2%, 58.8%, 0%, 17.3%)
CIE-LAB	lab(42.32, 32.92, -66.23)
CIE-LCH	lch(42.32, 73.96, 296.43°)
OKLab	oklab(51.56% 0.0036 -0.1909)
OKLCH	oklch(51.56% 0.191 271.1)
XYZ	xyz(17.4768, 12.7112, 63.1479)
Luminance	0.1271 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4357D3 #D3BF43

analogous

#439FD3 #4357D3 #7743D3

triadic

#4357D3 #D34357 #57D343

tetradic

#4357D3 #D3439F #D3BF43 #43D377

square

#4357D3 #D3439F #D3BF43 #43D377

split-complementary

#4357D3 #D37743 #9FD343

monochromatic

#1E2B7E #293CB0 #4357D3 #7583DF #A6B0EA

Accessibility & contrast

On white

5.93

#4357D3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#4357D3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4357D3

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4357D3	#FFFFFF	#000000	##FFFFFF
##4357D3	1.00	5.93	3.54	5.93
#FFFFFF	5.93	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BD7

Deuteranopia (green-blind)

#005ED1

Tritanopia (blue-blind)

#00768C

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #4357d3;
/* rgb */ color: rgb(67, 87, 211);
/* oklch */ color: oklch(51.6% 0.191 271.1);

Tailwind

colors: {
  custom: {
    50: '#8886e1',
    500: '#4357d3',
    950: '#000000',
  },
}

SCSS

$custom: #4357d3;
$custom-light: #8886e1;
$custom-dark: #000000;

JSON

{
  "hex": "#4357d3",
  "rgb": {
    "r": 67,
    "g": 87,
    "b": 211
  },
  "hsl": {
    "h": 231.667,
    "s": 62.069,
    "l": 54.51
  },
  "oklch": {
    "l": 0.51563,
    "c": 0.19092,
    "h": 271.1
  },
  "luminance": 0.12713
}

Semantic roles & 50–950 ramp

primary

#4357D3

secondary

#D7CF9A

accent

#CF43E5

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4357D3

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

Preview Lab → · Contrast checker → · Palette generator →