#3E57A3#3E57A3

#3E57A3 is a mid, vivid blue. Relative luminance 0.105; OKLCH L 47.7% C 0.126 H 267.8°. Best body text is #FFFFFF at 6.78:1 contrast (WCAG AA passes).

Color values

HEX	#3E57A3
RGB	rgb(62, 87, 163)
HSL	hsl(225, 45%, 44%)
HSV	hsv(225, 62%, 64%)
CMYK	cmyk(62%, 46.6%, 0%, 36.1%)
CIE-LAB	lab(38.70, 15.09, -44.03)
CIE-LCH	lch(38.70, 46.55, 288.92°)
OKLab	oklab(47.69% -0.0049 -0.1257)
OKLCH	oklch(47.69% 0.126 267.8)
XYZ	xyz(12.0034, 10.4838, 36.0343)
Luminance	0.1048 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3E57A3 #A38A3E

analogous

#3E8AA3 #3E57A3 #583EA3

triadic

#3E57A3 #A33E57 #57A33E

tetradic

#3E57A3 #A33E8A #A38A3E #3EA358

square

#3E57A3 #A33E8A #A38A3E #3EA358

split-complementary

#3E57A3 #A3583E #8AA33E

monochromatic

#1C284A #2D3F77 #3E57A3 #5D76C1 #899BD2

Accessibility & contrast

On white

6.78

#3E57A3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#3E57A3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3E57A3

6.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3E57A3	#FFFFFF	#000000	##FFFFFF
##3E57A3	1.00	6.78	3.10	6.78
#FFFFFF	6.78	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3360A6

Deuteranopia (green-blind)

#2257A1

Tritanopia (blue-blind)

#006875

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3e57a3;
/* rgb */ color: rgb(62, 87, 163);
/* oklch */ color: oklch(47.7% 0.126 267.8);

Tailwind

colors: {
  custom: {
    50: '#7d86bf',
    500: '#3e57a3',
    950: '#000000',
  },
}

SCSS

$custom: #3e57a3;
$custom-light: #7d86bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3e57a3",
  "rgb": {
    "r": 62,
    "g": 87,
    "b": 163
  },
  "hsl": {
    "h": 225.149,
    "s": 44.889,
    "l": 44.118
  },
  "oklch": {
    "l": 0.47692,
    "c": 0.12583,
    "h": 267.8
  },
  "luminance": 0.10485
}

Semantic roles & 50–950 ramp

primary

#3E57A3

secondary

#BDAE80

accent

#B553D5

background

#F8F8FB

surface

#EFEFF7

border

#CACAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #3E57A3

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

Preview Lab → · Contrast checker → · Palette generator →