#4231B3#4231B3

#4231B3 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 42.4% C 0.194 H 280.1°. Best body text is #FFFFFF at 9.04:1 contrast (WCAG AA passes).

Color values

HEX	#4231B3
RGB	rgb(66, 49, 179)
HSL	hsl(248, 57%, 45%)
HSV	hsv(248, 73%, 70%)
CMYK	cmyk(63.1%, 72.6%, 0%, 29.8%)
CIE-LAB	lab(30.90, 45.00, -66.23)
CIE-LCH	lch(30.90, 80.07, 304.20°)
OKLab	oklab(42.38% 0.034 -0.1911)
OKLCH	oklch(42.38% 0.194 280.1)
XYZ	xyz(11.4792, 6.6087, 43.3098)
Luminance	0.0661 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4231B3 #A2B331

analogous

#3161B3 #4231B3 #8331B3

triadic

#4231B3 #B34231 #31B342

tetradic

#4231B3 #B33161 #A2B331 #31B383

square

#4231B3 #B33161 #A2B331 #31B383

split-complementary

#4231B3 #B38331 #61B331

monochromatic

#1F1753 #302483 #4231B3 #6252D0 #8E82DD

Accessibility & contrast

On white

9.04

#4231B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#4231B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4231B3

9.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4231B3	#FFFFFF	#000000	##FFFFFF
##4231B3	1.00	9.04	2.32	9.04
#FFFFFF	9.04	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DB7

Deuteranopia (green-blind)

#0044B1

Tritanopia (blue-blind)

#00556F

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #4231b3;
/* rgb */ color: rgb(66, 49, 179);
/* oklch */ color: oklch(42.4% 0.194 280.1);

Tailwind

colors: {
  custom: {
    50: '#846bcb',
    500: '#4231b3',
    950: '#000000',
  },
}

SCSS

$custom: #4231b3;
$custom-light: #846bcb;
$custom-dark: #000000;

JSON

{
  "hex": "#4231b3",
  "rgb": {
    "r": 66,
    "g": 49,
    "b": 179
  },
  "hsl": {
    "h": 247.846,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.42382,
    "c": 0.19405,
    "h": 280.1
  },
  "luminance": 0.0661
}

Semantic roles & 50–950 ramp

primary

#4231B3

secondary

#BCC67A

accent

#E048CC

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4231B3

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

Preview Lab → · Contrast checker → · Palette generator →