#4357D1#4357D1

#4357D1 is a mid, vivid blue. Relative luminance 0.126; OKLCH L 51.4% C 0.188 H 271.1°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#4357D1
RGB	rgb(67, 87, 209)
HSL	hsl(232, 61%, 54%)
HSV	hsv(232, 68%, 82%)
CMYK	cmyk(67.9%, 58.4%, 0%, 18%)
CIE-LAB	lab(42.17, 32.22, -65.33)
CIE-LCH	lch(42.17, 72.84, 296.26°)
OKLab	oklab(51.4% 0.0036 -0.1882)
OKLCH	oklch(51.4% 0.188 271.1)
XYZ	xyz(17.2277, 12.6115, 61.8356)
Luminance	0.1261 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4357D1 #D1BD43

analogous

#439ED1 #4357D1 #7643D1

triadic

#4357D1 #D14357 #57D143

tetradic

#4357D1 #D1439E #D1BD43 #43D176

square

#4357D1 #D1439E #D1BD43 #43D176

split-complementary

#4357D1 #D17643 #9ED143

monochromatic

#1E2B7B #2A3DAD #4357D1 #7483DD #A5AFE9

Accessibility & contrast

On white

5.96

#4357D1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#4357D1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4357D1

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4357D1	#FFFFFF	#000000	##FFFFFF
##4357D1	1.00	5.96	3.52	5.96
#FFFFFF	5.96	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AD5

Deuteranopia (green-blind)

#005DCF

Tritanopia (blue-blind)

#00758B

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #4357d1;
/* rgb */ color: rgb(67, 87, 209);
/* oklch */ color: oklch(51.4% 0.188 271.1);

Tailwind

colors: {
  custom: {
    50: '#8886e0',
    500: '#4357d1',
    950: '#000000',
  },
}

SCSS

$custom: #4357d1;
$custom-light: #8886e0;
$custom-dark: #000000;

JSON

{
  "hex": "#4357d1",
  "rgb": {
    "r": 67,
    "g": 87,
    "b": 209
  },
  "hsl": {
    "h": 231.549,
    "s": 60.684,
    "l": 54.118
  },
  "oklch": {
    "l": 0.51402,
    "c": 0.18828,
    "h": 271.1
  },
  "luminance": 0.12613
}

Semantic roles & 50–950 ramp

primary

#4357D1

secondary

#D6CE9A

accent

#CD44E4

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4357D1

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

Preview Lab → · Contrast checker → · Palette generator →