#3A51BC#3A51BC

#3A51BC is a mid, vivid blue. Relative luminance 0.104; OKLCH L 48.1% C 0.170 H 269.7°. Best body text is #FFFFFF at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#3A51BC
RGB	rgb(58, 81, 188)
HSL	hsl(229, 53%, 48%)
HSV	hsv(229, 69%, 74%)
CMYK	cmyk(69.1%, 56.9%, 0%, 26.3%)
CIE-LAB	lab(38.58, 27.31, -59.02)
CIE-LCH	lch(38.58, 65.03, 294.83°)
OKLab	oklab(48.09% -0.0009 -0.17)
OKLCH	oklch(48.09% 0.17 269.7)
XYZ	xyz(13.7614, 10.4139, 48.8521)
Luminance	0.1042 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A51BC #BCA53A

analogous

#3A92BC #3A51BC #643ABC

triadic

#3A51BC #BC3A51 #51BC3A

tetradic

#3A51BC #BC3A92 #BCA53A #3ABC64

square

#3A51BC #BC3A92 #BCA53A #3ABC64

split-complementary

#3A51BC #BC643A #92BC3A

monochromatic

#1D295E #2C3D8D #3A51BC #6477CF #93A0DE

Accessibility & contrast

On white

6.81

#3A51BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#3A51BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A51BC

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A51BC	#FFFFFF	#000000	##FFFFFF
##3A51BC	1.00	6.81	3.08	6.81
#FFFFFF	6.81	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C0

Deuteranopia (green-blind)

#0055BA

Tritanopia (blue-blind)

#006B7E

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3a51bc;
/* rgb */ color: rgb(58, 81, 188);
/* oklch */ color: oklch(48.1% 0.170 269.7);

Tailwind

colors: {
  custom: {
    50: '#8081d1',
    500: '#3a51bc',
    950: '#000000',
  },
}

SCSS

$custom: #3a51bc;
$custom-light: #8081d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3a51bc",
  "rgb": {
    "r": 58,
    "g": 81,
    "b": 188
  },
  "hsl": {
    "h": 229.385,
    "s": 52.846,
    "l": 48.235
  },
  "oklch": {
    "l": 0.4809,
    "c": 0.16997,
    "h": 269.7
  },
  "luminance": 0.10415
}

Semantic roles & 50–950 ramp

primary

#3A51BC

secondary

#C9BD89

accent

#C34CDC

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3A51BC

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

Preview Lab → · Contrast checker → · Palette generator →