#4357CD#4357CD

#4357CD is a mid, vivid blue. Relative luminance 0.124; OKLCH L 51.1% C 0.183 H 271.1°. Best body text is #FFFFFF at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#4357CD
RGB	rgb(67, 87, 205)
HSL	hsl(231, 58%, 53%)
HSV	hsv(231, 67%, 80%)
CMYK	cmyk(67.3%, 57.6%, 0%, 19.6%)
CIE-LAB	lab(41.87, 30.82, -63.52)
CIE-LCH	lch(41.87, 70.60, 295.89°)
OKLab	oklab(51.08% 0.0036 -0.1829)
OKLCH	oklch(51.08% 0.183 271.1)
XYZ	xyz(16.7387, 12.4159, 59.2602)
Luminance	0.1242 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4357CD #CDB943

analogous

#439CCD #4357CD #7443CD

triadic

#4357CD #CD4357 #57CD43

tetradic

#4357CD #CD439C #CDB943 #43CD74

square

#4357CD #CD439C #CDB943 #43CD74

split-complementary

#4357CD #CD7443 #9CCD43

monochromatic

#1F2C76 #2C3EA7 #4357CD #7382DA #A4ADE7

Accessibility & contrast

On white

6.03

#4357CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#4357CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4357CD

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4357CD	#FFFFFF	#000000	##FFFFFF
##4357CD	1.00	6.03	3.48	6.03
#FFFFFF	6.03	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069D1

Deuteranopia (green-blind)

#005DCB

Tritanopia (blue-blind)

#007489

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #4357cd;
/* rgb */ color: rgb(67, 87, 205);
/* oklch */ color: oklch(51.1% 0.183 271.1);

Tailwind

colors: {
  custom: {
    50: '#8786dd',
    500: '#4357cd',
    950: '#000000',
  },
}

SCSS

$custom: #4357cd;
$custom-light: #8786dd;
$custom-dark: #000000;

JSON

{
  "hex": "#4357cd",
  "rgb": {
    "r": 67,
    "g": 87,
    "b": 205
  },
  "hsl": {
    "h": 231.304,
    "s": 57.983,
    "l": 53.333
  },
  "oklch": {
    "l": 0.51082,
    "c": 0.18297,
    "h": 271.1
  },
  "luminance": 0.12417
}

Semantic roles & 50–950 ramp

primary

#4357CD

secondary

#D4CB98

accent

#CB47E1

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0D0B15

muted

#7D7C83

Preview Lab

Preview with #4357CD

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

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