#4237A2#4237A2

#4237A2 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.7% C 0.166 H 281.1°. Best body text is #FFFFFF at 9.13:1 contrast (WCAG AA passes).

Color values

HEX	#4237A2
RGB	rgb(66, 55, 162)
HSL	hsl(246, 49%, 43%)
HSV	hsv(246, 66%, 64%)
CMYK	cmyk(59.3%, 66%, 0%, 36.5%)
CIE-LAB	lab(30.64, 36.06, -56.46)
CIE-LCH	lch(30.64, 66.99, 302.57°)
OKLab	oklab(41.72% 0.0319 -0.1625)
OKLCH	oklch(41.72% 0.166 281.1)
XYZ	xyz(10.1325, 6.4986, 34.8958)
Luminance	0.0650 (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

#4237A2 #97A237

analogous

#3762A2 #4237A2 #7737A2

triadic

#4237A2 #A24237 #37A242

tetradic

#4237A2 #A23762 #97A237 #37A277

square

#4237A2 #A23762 #97A237 #37A277

split-complementary

#4237A2 #A27737 #62A237

monochromatic

#1D1847 #2F2774 #4237A2 #5E52C4 #8880D4

Accessibility & contrast

On white

9.13

#4237A2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#4237A2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4237A2

9.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4237A2	#FFFFFF	#000000	##FFFFFF
##4237A2	1.00	9.13	2.30	9.13
#FFFFFF	9.13	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA5

Deuteranopia (green-blind)

#0044A0

Tritanopia (blue-blind)

#035267

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #4237a2;
/* rgb */ color: rgb(66, 55, 162);
/* oklch */ color: oklch(41.7% 0.166 281.1);

Tailwind

colors: {
  custom: {
    50: '#816fbe',
    500: '#4237a2',
    950: '#000000',
  },
}

SCSS

$custom: #4237a2;
$custom-light: #816fbe;
$custom-dark: #000000;

JSON

{
  "hex": "#4237a2",
  "rgb": {
    "r": 66,
    "g": 55,
    "b": 162
  },
  "hsl": {
    "h": 246.168,
    "s": 49.309,
    "l": 42.549
  },
  "oklch": {
    "l": 0.41723,
    "c": 0.16556,
    "h": 281.1
  },
  "luminance": 0.06499
}

Semantic roles & 50–950 ramp

primary

#4237A2

secondary

#B6BD78

accent

#D94FCB

background

#F8F6FB

surface

#EFECF7

border

#CAC7D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #4237A2

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

Preview Lab → · Contrast checker → · Palette generator →