#4357D5#4357D5

#4357D5 is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.7% C 0.194 H 271.1°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#4357D5
RGB	rgb(67, 87, 213)
HSL	hsl(232, 63%, 55%)
HSV	hsv(232, 69%, 84%)
CMYK	cmyk(68.5%, 59.2%, 0%, 16.5%)
CIE-LAB	lab(42.48, 33.62, -67.12)
CIE-LCH	lch(42.48, 75.07, 296.61°)
OKLab	oklab(51.73% 0.0036 -0.1935)
OKLCH	oklch(51.73% 0.194 271.1)
XYZ	xyz(17.7291, 12.8121, 64.4765)
Luminance	0.1281 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4357D5 #D5C143

analogous

#43A0D5 #4357D5 #7843D5

triadic

#4357D5 #D54357 #57D543

tetradic

#4357D5 #D543A0 #D5C143 #43D578

square

#4357D5 #D543A0 #D5C143 #43D578

split-complementary

#4357D5 #D57843 #A0D543

monochromatic

#1D2A81 #283BB3 #4357D5 #7584E0 #A7B0EB

Accessibility & contrast

On white

5.89

#4357D5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#4357D5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4357D5

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4357D5	#FFFFFF	#000000	##FFFFFF
##4357D5	1.00	5.89	3.56	5.89
#FFFFFF	5.89	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BD9

Deuteranopia (green-blind)

#005ED3

Tritanopia (blue-blind)

#00768D

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #4357d5;
/* rgb */ color: rgb(67, 87, 213);
/* oklch */ color: oklch(51.7% 0.194 271.1);

Tailwind

colors: {
  custom: {
    50: '#8986e3',
    500: '#4357d5',
    950: '#000000',
  },
}

SCSS

$custom: #4357d5;
$custom-light: #8986e3;
$custom-dark: #000000;

JSON

{
  "hex": "#4357d5",
  "rgb": {
    "r": 67,
    "g": 87,
    "b": 213
  },
  "hsl": {
    "h": 231.781,
    "s": 63.478,
    "l": 54.902
  },
  "oklch": {
    "l": 0.51726,
    "c": 0.19356,
    "h": 271.1
  },
  "luminance": 0.12814
}

Semantic roles & 50–950 ramp

primary

#4357D5

secondary

#D9D09B

accent

#D041E7

background

#F9F8FE

surface

#F1EFFC

border

#CBCAD5

text

#0D0B16

muted

#7E7C84

Preview Lab

Preview with #4357D5

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

Preview Lab → · Contrast checker → · Palette generator →