#3A51BF#3A51BF

#3A51BF is a mid, vivid blue. Relative luminance 0.105; OKLCH L 48.3% C 0.174 H 269.7°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#3A51BF
RGB	rgb(58, 81, 191)
HSL	hsl(230, 53%, 49%)
HSV	hsv(230, 70%, 75%)
CMYK	cmyk(69.6%, 57.6%, 0%, 25.1%)
CIE-LAB	lab(38.80, 28.39, -60.40)
CIE-LCH	lch(38.80, 66.74, 295.18°)
OKLab	oklab(48.33% -0.0008 -0.174)
OKLCH	oklch(48.33% 0.174 269.7)
XYZ	xyz(14.0881, 10.5446, 50.5730)
Luminance	0.1055 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A51BF #BFA83A

analogous

#3A94BF #3A51BF #663ABF

triadic

#3A51BF #BF3A51 #51BF3A

tetradic

#3A51BF #BF3A94 #BFA83A #3ABF66

square

#3A51BF #BF3A94 #BFA83A #3ABF66

split-complementary

#3A51BF #BF663A #94BF3A

monochromatic

#1D2961 #2C3D90 #3A51BF #6678D0 #95A1DF

Accessibility & contrast

On white

6.75

#3A51BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#3A51BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A51BF

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A51BF	#FFFFFF	#000000	##FFFFFF
##3A51BF	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062C3

Deuteranopia (green-blind)

#0055BD

Tritanopia (blue-blind)

#006C80

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3a51bf;
/* rgb */ color: rgb(58, 81, 191);
/* oklch */ color: oklch(48.3% 0.174 269.7);

Tailwind

colors: {
  custom: {
    50: '#8181d3',
    500: '#3a51bf',
    950: '#000000',
  },
}

SCSS

$custom: #3a51bf;
$custom-light: #8181d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3a51bf",
  "rgb": {
    "r": 58,
    "g": 81,
    "b": 191
  },
  "hsl": {
    "h": 229.624,
    "s": 53.414,
    "l": 48.824
  },
  "oklch": {
    "l": 0.48331,
    "c": 0.17404,
    "h": 269.7
  },
  "luminance": 0.10546
}

Semantic roles & 50–950 ramp

primary

#3A51BF

secondary

#CABF8B

accent

#C44BDD

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3A51BF

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

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