#3D40CB#3D40CB

#3D40CB is a mid, highly saturated blue. Relative luminance 0.090; OKLCH L 46.6% C 0.209 H 273.8°. Best body text is #FFFFFF at 7.52:1 contrast (WCAG AA passes).

Color values

HEX	#3D40CB
RGB	rgb(61, 64, 203)
HSL	hsl(239, 58%, 52%)
HSV	hsv(239, 70%, 80%)
CMYK	cmyk(70%, 68.5%, 0%, 20.4%)
CIE-LAB	lab(35.93, 43.56, -72.09)
CIE-LCH	lch(35.93, 84.23, 301.14°)
OKLab	oklab(46.57% 0.0139 -0.2084)
OKLCH	oklch(46.57% 0.209 273.8)
XYZ	xyz(14.5338, 8.9693, 57.4536)
Luminance	0.0897 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.79

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D40CB #CBC83D

analogous

#3D87CB #3D40CB #813DCB

triadic

#3D40CB #CB3D40 #40CB3D

tetradic

#3D40CB #CB3D87 #CBC83D #3DCB81

square

#3D40CB #CB3D87 #CBC83D #3DCB81

split-complementary

#3D40CB #CB813D #87CB3D

monochromatic

#1E2070 #2B2DA0 #3D40CB #6D70D8 #9E9FE5

Accessibility & contrast

On white

7.52

#3D40CB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#3D40CB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3D40CB

7.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D40CB	#FFFFFF	#000000	##FFFFFF
##3D40CB	1.00	7.52	2.79	7.52
#FFFFFF	7.52	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BCF

Deuteranopia (green-blind)

#004EC8

Tritanopia (blue-blind)

#006680

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3d40cb;
/* rgb */ color: rgb(61, 64, 203);
/* oklch */ color: oklch(46.6% 0.209 273.8);

Tailwind

colors: {
  custom: {
    50: '#8676dc',
    500: '#3d40cb',
    950: '#000000',
  },
}

SCSS

$custom: #3d40cb;
$custom-light: #8676dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3d40cb",
  "rgb": {
    "r": 61,
    "g": 64,
    "b": 203
  },
  "hsl": {
    "h": 238.732,
    "s": 57.724,
    "l": 51.765
  },
  "oklch": {
    "l": 0.46574,
    "c": 0.20882,
    "h": 273.8
  },
  "luminance": 0.08971
}

Semantic roles & 50–950 ramp

primary

#3D40CB

secondary

#D1D093

accent

#DE47E1

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #3D40CB

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

Preview Lab → · Contrast checker → · Palette generator →