#3E57B7#3E57B7

#3E57B7 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 49.1% C 0.154 H 269.1°. Best body text is #FFFFFF at 6.46:1 contrast (WCAG AA passes).

Color values

HEX	#3E57B7
RGB	rgb(62, 87, 183)
HSL	hsl(228, 49%, 48%)
HSV	hsv(228, 66%, 72%)
CMYK	cmyk(66.1%, 52.5%, 0%, 28.2%)
CIE-LAB	lab(40.01, 22.24, -53.75)
CIE-LCH	lch(40.01, 58.17, 292.48°)
OKLab	oklab(49.11% -0.0025 -0.1543)
OKLCH	oklch(49.11% 0.154 269.1)
XYZ	xyz(13.9391, 11.2581, 46.2290)
Luminance	0.1126 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3E57B7 #B79E3E

analogous

#3E94B7 #3E57B7 #613EB7

triadic

#3E57B7 #B73E57 #57B73E

tetradic

#3E57B7 #B73E94 #B79E3E #3EB761

square

#3E57B7 #B73E94 #B79E3E #3EB761

split-complementary

#3E57B7 #B7613E #94B73E

monochromatic

#1F2C5C #2F4189 #3E57B7 #677CCB #94A3DB

Accessibility & contrast

On white

6.46

#3E57B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#3E57B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3E57B7

6.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3E57B7	#FFFFFF	#000000	##FFFFFF
##3E57B7	1.00	6.46	3.25	6.46
#FFFFFF	6.46	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B64BA

Deuteranopia (green-blind)

#0059B5

Tritanopia (blue-blind)

#006E7E

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3e57b7;
/* rgb */ color: rgb(62, 87, 183);
/* oklch */ color: oklch(49.1% 0.154 269.1);

Tailwind

colors: {
  custom: {
    50: '#8086cd',
    500: '#3e57b7',
    950: '#000000',
  },
}

SCSS

$custom: #3e57b7;
$custom-light: #8086cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3e57b7",
  "rgb": {
    "r": 62,
    "g": 87,
    "b": 183
  },
  "hsl": {
    "h": 227.603,
    "s": 49.388,
    "l": 48.039
  },
  "oklch": {
    "l": 0.49113,
    "c": 0.15432,
    "h": 269.1
  },
  "luminance": 0.11259
}

Semantic roles & 50–950 ramp

primary

#3E57B7

secondary

#C6BA8A

accent

#BC4FD9

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3E57B7

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

Preview Lab → · Contrast checker → · Palette generator →