#4357D0#4357D0

#4357D0 is a mid, vivid blue. Relative luminance 0.126; OKLCH L 51.3% C 0.187 H 271.1°. Best body text is #FFFFFF at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#4357D0
RGB	rgb(67, 87, 208)
HSL	hsl(231, 60%, 54%)
HSV	hsv(231, 68%, 82%)
CMYK	cmyk(67.8%, 58.2%, 0%, 18.4%)
CIE-LAB	lab(42.10, 31.87, -64.88)
CIE-LCH	lch(42.10, 72.28, 296.17°)
OKLab	oklab(51.32% 0.0036 -0.1869)
OKLCH	oklch(51.32% 0.187 271.1)
XYZ	xyz(17.1042, 12.5621, 61.1856)
Luminance	0.1256 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4357D0 #D0BC43

analogous

#439ED0 #4357D0 #7643D0

triadic

#4357D0 #D04357 #57D043

tetradic

#4357D0 #D0439E #D0BC43 #43D076

square

#4357D0 #D0439E #D0BC43 #43D076

split-complementary

#4357D0 #D07643 #9ED043

monochromatic

#1F2C7A #2B3DAB #4357D0 #7483DC #A5AFE8

Accessibility & contrast

On white

5.98

#4357D0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#4357D0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4357D0

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4357D0	#FFFFFF	#000000	##FFFFFF
##4357D0	1.00	5.98	3.51	5.98
#FFFFFF	5.98	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AD4

Deuteranopia (green-blind)

#005DCE

Tritanopia (blue-blind)

#00758B

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #4357d0;
/* rgb */ color: rgb(67, 87, 208);
/* oklch */ color: oklch(51.3% 0.187 271.1);

Tailwind

colors: {
  custom: {
    50: '#8886df',
    500: '#4357d0',
    950: '#000000',
  },
}

SCSS

$custom: #4357d0;
$custom-light: #8886df;
$custom-dark: #000000;

JSON

{
  "hex": "#4357d0",
  "rgb": {
    "r": 67,
    "g": 87,
    "b": 208
  },
  "hsl": {
    "h": 231.489,
    "s": 60,
    "l": 53.922
  },
  "oklch": {
    "l": 0.51321,
    "c": 0.18696,
    "h": 271.1
  },
  "luminance": 0.12564
}

Semantic roles & 50–950 ramp

primary

#4357D0

secondary

#D5CD99

accent

#CD45E3

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4357D0

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

Preview Lab → · Contrast checker → · Palette generator →