#4233B2#4233B2

#4233B2 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.6% C 0.191 H 279.9°. Best body text is #FFFFFF at 8.94:1 contrast (WCAG AA passes).

Color values

HEX	#4233B2
RGB	rgb(66, 51, 178)
HSL	hsl(247, 55%, 45%)
HSV	hsv(247, 71%, 70%)
CMYK	cmyk(62.9%, 71.3%, 0%, 30.2%)
CIE-LAB	lab(31.21, 43.57, -65.13)
CIE-LCH	lch(31.21, 78.35, 303.78°)
OKLab	oklab(42.57% 0.0327 -0.1878)
OKLCH	oklch(42.57% 0.191 279.9)
XYZ	xyz(11.4639, 6.7394, 42.8076)
Luminance	0.0674 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 4.13

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4233B2 #A3B233

analogous

#3363B2 #4233B2 #8233B2

triadic

#4233B2 #B24233 #33B242

tetradic

#4233B2 #B23363 #A3B233 #33B282

square

#4233B2 #B23363 #A3B233 #33B282

split-complementary

#4233B2 #B28233 #63B233

monochromatic

#1F1853 #302582 #4233B2 #6354CE #8E84DC

Accessibility & contrast

On white

8.94

#4233B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#4233B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4233B2

8.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4233B2	#FFFFFF	#000000	##FFFFFF
##4233B2	1.00	8.94	2.35	8.94
#FFFFFF	8.94	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB6

Deuteranopia (green-blind)

#0044B0

Tritanopia (blue-blind)

#00566F

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #4233b2;
/* rgb */ color: rgb(66, 51, 178);
/* oklch */ color: oklch(42.6% 0.191 279.9);

Tailwind

colors: {
  custom: {
    50: '#846cca',
    500: '#4233b2',
    950: '#000000',
  },
}

SCSS

$custom: #4233b2;
$custom-light: #846cca;
$custom-dark: #000000;

JSON

{
  "hex": "#4233b2",
  "rgb": {
    "r": 66,
    "g": 51,
    "b": 178
  },
  "hsl": {
    "h": 247.087,
    "s": 55.459,
    "l": 44.902
  },
  "oklch": {
    "l": 0.42572,
    "c": 0.19068,
    "h": 279.9
  },
  "luminance": 0.0674
}

Semantic roles & 50–950 ramp

primary

#4233B2

secondary

#BCC57C

accent

#DF49CD

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4233B2

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

Preview Lab → · Contrast checker → · Palette generator →