#3A40DD#3A40DD

#3A40DD is a mid, highly saturated blue. Relative luminance 0.098; OKLCH L 48.1% C 0.232 H 272.0°. Best body text is #FFFFFF at 7.10:1 contrast (WCAG AA passes).

Color values

HEX	#3A40DD
RGB	rgb(58, 64, 221)
HSL	hsl(238, 71%, 55%)
HSV	hsv(238, 74%, 87%)
CMYK	cmyk(73.8%, 71%, 0%, 13.3%)
CIE-LAB	lab(37.45, 49.22, -79.96)
CIE-LCH	lch(37.45, 93.90, 301.62°)
OKLab	oklab(48.14% 0.0081 -0.2314)
OKLCH	oklch(48.14% 0.232 272)
XYZ	xyz(16.6251, 9.7850, 69.4051)
Luminance	0.0979 (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

#3A40DD #DDD73A

analogous

#3A92DD #3A40DD #853ADD

triadic

#3A40DD #DD3A40 #40DD3A

tetradic

#3A40DD #DD3A92 #DDD73A #3ADD85

square

#3A40DD #DD3A92 #DDD73A #3ADD85

split-complementary

#3A40DD #DD853A #92DD3A

monochromatic

#171B86 #2026BA #3A40DD #6E73E6 #A2A5EF

Accessibility & contrast

On white

7.10

#3A40DD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#3A40DD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A40DD

7.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A40DD	#FFFFFF	#000000	##FFFFFF
##3A40DD	1.00	7.10	2.96	7.10
#FFFFFF	7.10	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060E2

Deuteranopia (green-blind)

#0050DA

Tritanopia (blue-blind)

#006C8A

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #3a40dd;
/* rgb */ color: rgb(58, 64, 221);
/* oklch */ color: oklch(48.1% 0.232 272.0);

Tailwind

colors: {
  custom: {
    50: '#8976e9',
    500: '#3a40dd',
    950: '#000000',
  },
}

SCSS

$custom: #3a40dd;
$custom-light: #8976e9;
$custom-dark: #000000;

JSON

{
  "hex": "#3a40dd",
  "rgb": {
    "r": 58,
    "g": 64,
    "b": 221
  },
  "hsl": {
    "h": 237.791,
    "s": 70.563,
    "l": 54.706
  },
  "oklch": {
    "l": 0.4814,
    "c": 0.23155,
    "h": 272
  },
  "luminance": 0.09787
}

Semantic roles & 50–950 ramp

primary

#3A40DD

secondary

#DCD997

accent

#E73AED

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0D0816

muted

#7E7B84

Preview Lab

Preview with #3A40DD

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

Preview Lab → · Contrast checker → · Palette generator →