#3A51CB#3A51CB

#3A51CB is a mid, vivid blue. Relative luminance 0.111; OKLCH L 49.3% C 0.190 H 269.8°. Best body text is #FFFFFF at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#3A51CB
RGB	rgb(58, 81, 203)
HSL	hsl(230, 58%, 51%)
HSV	hsv(230, 71%, 80%)
CMYK	cmyk(71.4%, 60.1%, 0%, 20.4%)
CIE-LAB	lab(39.74, 32.70, -65.85)
CIE-LCH	lch(39.74, 73.52, 296.41°)
OKLab	oklab(49.32% -0.0007 -0.19)
OKLCH	oklch(49.32% 0.19 269.8)
XYZ	xyz(15.4632, 11.0946, 57.8149)
Luminance	0.1110 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A51CB #CBB43A

analogous

#3A99CB #3A51CB #6B3ACB

triadic

#3A51CB #CB3A51 #51CB3A

tetradic

#3A51CB #CB3A99 #CBB43A #3ACB6B

square

#3A51CB #CB3A99 #CBB43A #3ACB6B

split-complementary

#3A51CB #CB6B3A #99CB3A

monochromatic

#1D2A6E #2A3C9E #3A51CB #6A7CD8 #9BA7E5

Accessibility & contrast

On white

6.52

#3A51CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#3A51CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A51CB

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A51CB	#FFFFFF	#000000	##FFFFFF
##3A51CB	1.00	6.52	3.22	6.52
#FFFFFF	6.52	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065CF

Deuteranopia (green-blind)

#0057C9

Tritanopia (blue-blind)

#007086

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3a51cb;
/* rgb */ color: rgb(58, 81, 203);
/* oklch */ color: oklch(49.3% 0.190 269.8);

Tailwind

colors: {
  custom: {
    50: '#8381dc',
    500: '#3a51cb',
    950: '#000000',
  },
}

SCSS

$custom: #3a51cb;
$custom-light: #8381dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3a51cb",
  "rgb": {
    "r": 58,
    "g": 81,
    "b": 203
  },
  "hsl": {
    "h": 230.483,
    "s": 58.233,
    "l": 51.176
  },
  "oklch": {
    "l": 0.49321,
    "c": 0.19005,
    "h": 269.8
  },
  "luminance": 0.11096
}

Semantic roles & 50–950 ramp

primary

#3A51CB

secondary

#D0C690

accent

#C946E1

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3A51CB

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

Preview Lab → · Contrast checker → · Palette generator →