#4231BC#4231BC

#4231BC is a dark, highly saturated blue. Relative luminance 0.070; OKLCH L 43.3% C 0.205 H 279.0°. Best body text is #FFFFFF at 8.76:1 contrast (WCAG AA passes).

Color values

HEX	#4231BC
RGB	rgb(66, 49, 188)
HSL	hsl(247, 59%, 46%)
HSV	hsv(247, 74%, 74%)
CMYK	cmyk(64.9%, 73.9%, 0%, 26.3%)
CIE-LAB	lab(31.77, 47.81, -70.12)
CIE-LCH	lch(31.77, 84.87, 304.28°)
OKLab	oklab(43.26% 0.0321 -0.2024)
OKLCH	oklch(43.26% 0.205 279)
XYZ	xyz(12.4193, 6.9847, 48.2609)
Luminance	0.0699 (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

#4231BC #ABBC31

analogous

#3166BC #4231BC #8831BC

triadic

#4231BC #BC4231 #31BC42

tetradic

#4231BC #BC3166 #ABBC31 #31BC88

square

#4231BC #BC3166 #ABBC31 #31BC88

split-complementary

#4231BC #BC8831 #66BC31

monochromatic

#20185B #31248B #4231BC #6657D3 #9288E0

Accessibility & contrast

On white

8.76

#4231BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#4231BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4231BC

8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4231BC	#FFFFFF	#000000	##FFFFFF
##4231BC	1.00	8.76	2.40	8.76
#FFFFFF	8.76	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050C0

Deuteranopia (green-blind)

#0045B9

Tritanopia (blue-blind)

#005874

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #4231bc;
/* rgb */ color: rgb(66, 49, 188);
/* oklch */ color: oklch(43.3% 0.205 279.0);

Tailwind

colors: {
  custom: {
    50: '#866cd1',
    500: '#4231bc',
    950: '#000000',
  },
}

SCSS

$custom: #4231bc;
$custom-light: #866cd1;
$custom-dark: #000000;

JSON

{
  "hex": "#4231bc",
  "rgb": {
    "r": 66,
    "g": 49,
    "b": 188
  },
  "hsl": {
    "h": 247.338,
    "s": 58.65,
    "l": 46.471
  },
  "oklch": {
    "l": 0.43264,
    "c": 0.20497,
    "h": 279
  },
  "luminance": 0.06986
}

Semantic roles & 50–950 ramp

primary

#4231BC

secondary

#C0CA7F

accent

#E246CF

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0D0714

muted

#7D7A83

Preview Lab

Preview with #4231BC

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

Preview Lab → · Contrast checker → · Palette generator →