#3C40BA#3C40BA

#3C40BA is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.9% C 0.187 H 274.4°. Best body text is #FFFFFF at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#3C40BA
RGB	rgb(60, 64, 186)
HSL	hsl(238, 51%, 48%)
HSV	hsv(238, 68%, 73%)
CMYK	cmyk(67.7%, 65.6%, 0%, 27.1%)
CIE-LAB	lab(34.34, 37.68, -64.75)
CIE-LCH	lch(34.34, 74.91, 300.20°)
OKLab	oklab(44.94% 0.0145 -0.1869)
OKLCH	oklch(44.94% 0.187 274.4)
XYZ	xyz(12.5569, 8.1715, 47.3604)
Luminance	0.0817 (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

#3C40BA #BAB63C

analogous

#3C7FBA #3C40BA #773CBA

triadic

#3C40BA #BA3C40 #40BA3C

tetradic

#3C40BA #BA3C7F #BAB63C #3CBA77

square

#3C40BA #BA3C7F #BAB63C #3CBA77

split-complementary

#3C40BA #BA773C #7FBA3C

monochromatic

#1E205D #2D308C #3C40BA #6669CE #9496DC

Accessibility & contrast

On white

7.97

#3C40BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#3C40BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3C40BA

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3C40BA	#FFFFFF	#000000	##FFFFFF
##3C40BA	1.00	7.97	2.63	7.97
#FFFFFF	7.97	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BE

Deuteranopia (green-blind)

#004BB8

Tritanopia (blue-blind)

#006077

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3c40ba;
/* rgb */ color: rgb(60, 64, 186);
/* oklch */ color: oklch(44.9% 0.187 274.4);

Tailwind

colors: {
  custom: {
    50: '#8275d0',
    500: '#3c40ba',
    950: '#000000',
  },
}

SCSS

$custom: #3c40ba;
$custom-light: #8275d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3c40ba",
  "rgb": {
    "r": 60,
    "g": 64,
    "b": 186
  },
  "hsl": {
    "h": 238.095,
    "s": 51.22,
    "l": 48.235
  },
  "oklch": {
    "l": 0.4494,
    "c": 0.18746,
    "h": 274.4
  },
  "luminance": 0.08173
}

Semantic roles & 50–950 ramp

primary

#3C40BA

secondary

#C8C68A

accent

#D64DDB

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #3C40BA

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

Preview Lab → · Contrast checker → · Palette generator →