#4238BB#4238BB

#4238BB is a dark, vivid blue. Relative luminance 0.076; OKLCH L 44.2% C 0.196 H 278.1°. Best body text is #FFFFFF at 8.35:1 contrast (WCAG AA passes).

Color values

HEX	#4238BB
RGB	rgb(66, 56, 187)
HSL	hsl(245, 54%, 48%)
HSV	hsv(245, 70%, 73%)
CMYK	cmyk(64.7%, 70.1%, 0%, 26.7%)
CIE-LAB	lab(33.08, 43.59, -67.39)
CIE-LCH	lch(33.08, 80.25, 302.90°)
OKLab	oklab(44.17% 0.0276 -0.1945)
OKLCH	oklch(44.17% 0.196 278.1)
XYZ	xyz(12.6277, 7.5734, 47.8004)
Luminance	0.0757 (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

#4238BB #B1BB38

analogous

#3870BB #4238BB #8338BB

triadic

#4238BB #BB4238 #38BB42

tetradic

#4238BB #BB3870 #B1BB38 #38BB83

square

#4238BB #BB3870 #B1BB38 #38BB83

split-complementary

#4238BB #BB8338 #70BB38

monochromatic

#211C5D #312A8C #4238BB #6961D0 #9690DE

Accessibility & contrast

On white

8.35

#4238BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#4238BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4238BB

8.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4238BB	#FFFFFF	#000000	##FFFFFF
##4238BB	1.00	8.35	2.51	8.35
#FFFFFF	8.35	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053BF

Deuteranopia (green-blind)

#0048B9

Tritanopia (blue-blind)

#005C75

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #4238bb;
/* rgb */ color: rgb(66, 56, 187);
/* oklch */ color: oklch(44.2% 0.196 278.1);

Tailwind

colors: {
  custom: {
    50: '#8570d1',
    500: '#4238bb',
    950: '#000000',
  },
}

SCSS

$custom: #4238bb;
$custom-light: #8570d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4238bb",
  "rgb": {
    "r": 66,
    "g": 56,
    "b": 187
  },
  "hsl": {
    "h": 244.58,
    "s": 53.909,
    "l": 47.647
  },
  "oklch": {
    "l": 0.44166,
    "c": 0.19643,
    "h": 278.1
  },
  "luminance": 0.07574
}

Semantic roles & 50–950 ramp

primary

#4238BB

secondary

#C3C886

accent

#DD4BD2

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #4238BB

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

Preview Lab → · Contrast checker → · Palette generator →