#3A40CB#3A40CB

#3A40CB is a mid, highly saturated blue. Relative luminance 0.089; OKLCH L 46.4% C 0.210 H 272.9°. Best body text is #FFFFFF at 7.57:1 contrast (WCAG AA passes).

Color values

HEX	#3A40CB
RGB	rgb(58, 64, 203)
HSL	hsl(238, 58%, 51%)
HSV	hsv(238, 71%, 80%)
CMYK	cmyk(71.4%, 68.5%, 0%, 20.4%)
CIE-LAB	lab(35.75, 43.22, -72.39)
CIE-LCH	lch(35.75, 84.31, 300.84°)
OKLab	oklab(46.4% 0.0105 -0.2093)
OKLCH	oklch(46.4% 0.21 272.9)
XYZ	xyz(14.3542, 8.8767, 57.4452)
Luminance	0.0888 (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

#3A40CB #CBC53A

analogous

#3A88CB #3A40CB #7C3ACB

triadic

#3A40CB #CB3A40 #40CB3A

tetradic

#3A40CB #CB3A88 #CBC53A #3ACB7C

square

#3A40CB #CB3A88 #CBC53A #3ACB7C

split-complementary

#3A40CB #CB7C3A #88CB3A

monochromatic

#1D206E #2A2F9E #3A40CB #6A6FD8 #9B9EE5

Accessibility & contrast

On white

7.57

#3A40CB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#3A40CB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A40CB

7.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A40CB	#FFFFFF	#000000	##FFFFFF
##3A40CB	1.00	7.57	2.78	7.57
#FFFFFF	7.57	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BCF

Deuteranopia (green-blind)

#004DC8

Tritanopia (blue-blind)

#006680

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3a40cb;
/* rgb */ color: rgb(58, 64, 203);
/* oklch */ color: oklch(46.4% 0.210 272.9);

Tailwind

colors: {
  custom: {
    50: '#8575dc',
    500: '#3a40cb',
    950: '#000000',
  },
}

SCSS

$custom: #3a40cb;
$custom-light: #8575dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3a40cb",
  "rgb": {
    "r": 58,
    "g": 64,
    "b": 203
  },
  "hsl": {
    "h": 237.517,
    "s": 58.233,
    "l": 51.176
  },
  "oklch": {
    "l": 0.46397,
    "c": 0.20957,
    "h": 272.9
  },
  "luminance": 0.08878
}

Semantic roles & 50–950 ramp

primary

#3A40CB

secondary

#D0CE90

accent

#DB46E1

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0D0815

muted

#7D7B83

Preview Lab

Preview with #3A40CB

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

Preview Lab → · Contrast checker → · Palette generator →