#4357AA#4357AA

#4357AA is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.5% C 0.134 H 270.5°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#4357AA
RGB	rgb(67, 87, 170)
HSL	hsl(228, 43%, 46%)
HSV	hsv(228, 61%, 67%)
CMYK	cmyk(60.6%, 48.8%, 0%, 33.3%)
CIE-LAB	lab(39.43, 18.54, -47.00)
CIE-LCH	lch(39.43, 50.53, 291.52°)
OKLab	oklab(48.47% 0.0012 -0.1343)
OKLCH	oklch(48.47% 0.134 270.5)
XYZ	xyz(12.9762, 10.9109, 39.4446)
Luminance	0.1091 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4357AA #AA9643

analogous

#438BAA #4357AA #6343AA

triadic

#4357AA #AA4357 #57AA43

tetradic

#4357AA #AA438B #AA9643 #43AA63

square

#4357AA #AA438B #AA9643 #43AA63

split-complementary

#4357AA #AA6343 #8BAA43

monochromatic

#202A52 #32417E #4357AA #6779C3 #93A0D4

Accessibility & contrast

On white

6.60

#4357AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#4357AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4357AA

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4357AA	#FFFFFF	#000000	##FFFFFF
##4357AA	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D62AD

Deuteranopia (green-blind)

#1B59A8

Tritanopia (blue-blind)

#006A78

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #4357aa;
/* rgb */ color: rgb(67, 87, 170);
/* oklch */ color: oklch(48.5% 0.134 270.5);

Tailwind

colors: {
  custom: {
    50: '#8186c4',
    500: '#4357aa',
    950: '#000000',
  },
}

SCSS

$custom: #4357aa;
$custom-light: #8186c4;
$custom-dark: #000000;

JSON

{
  "hex": "#4357aa",
  "rgb": {
    "r": 67,
    "g": 87,
    "b": 170
  },
  "hsl": {
    "h": 228.35,
    "s": 43.46,
    "l": 46.471
  },
  "oklch": {
    "l": 0.48471,
    "c": 0.13436,
    "h": 270.5
  },
  "luminance": 0.10912
}

Semantic roles & 50–950 ramp

primary

#4357AA

secondary

#C0B589

accent

#BB55D3

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #4357AA

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

Preview Lab → · Contrast checker → · Palette generator →