#3E57BC#3E57BC

#3E57BC is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.5% C 0.161 H 269.2°. Best body text is #FFFFFF at 6.37:1 contrast (WCAG AA passes).

Color values

HEX	#3E57BC
RGB	rgb(62, 87, 188)
HSL	hsl(228, 50%, 49%)
HSV	hsv(228, 67%, 74%)
CMYK	cmyk(67%, 53.7%, 0%, 26.3%)
CIE-LAB	lab(40.36, 24.04, -56.11)
CIE-LCH	lch(40.36, 61.04, 293.19°)
OKLab	oklab(49.49% -0.0021 -0.1613)
OKLCH	oklch(49.49% 0.161 269.2)
XYZ	xyz(14.4688, 11.4700, 49.0186)
Luminance	0.1147 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3E57BC #BCA33E

analogous

#3E96BC #3E57BC #643EBC

triadic

#3E57BC #BC3E57 #57BC3E

tetradic

#3E57BC #BC3E96 #BCA33E #3EBC64

square

#3E57BC #BC3E96 #BCA33E #3EBC64

split-complementary

#3E57BC #BC643E #96BC3E

monochromatic

#202C60 #2F428E #3E57BC #6A7DCE #98A5DD

Accessibility & contrast

On white

6.37

#3E57BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#3E57BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3E57BC

6.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3E57BC	#FFFFFF	#000000	##FFFFFF
##3E57BC	1.00	6.37	3.29	6.37
#FFFFFF	6.37	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F65C0

Deuteranopia (green-blind)

#005ABA

Tritanopia (blue-blind)

#006F81

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3e57bc;
/* rgb */ color: rgb(62, 87, 188);
/* oklch */ color: oklch(49.5% 0.161 269.2);

Tailwind

colors: {
  custom: {
    50: '#8186d1',
    500: '#3e57bc',
    950: '#000000',
  },
}

SCSS

$custom: #3e57bc;
$custom-light: #8186d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3e57bc",
  "rgb": {
    "r": 62,
    "g": 87,
    "b": 188
  },
  "hsl": {
    "h": 228.095,
    "s": 50.4,
    "l": 49.02
  },
  "oklch": {
    "l": 0.49487,
    "c": 0.16127,
    "h": 269.2
  },
  "luminance": 0.11471
}

Semantic roles & 50–950 ramp

primary

#3E57BC

secondary

#C9BD8D

accent

#BE4EDA

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #3E57BC

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

Preview Lab → · Contrast checker → · Palette generator →