#3B57CD#3B57CD

#3B57CD is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.7% C 0.185 H 268.7°. Best body text is #FFFFFF at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#3B57CD
RGB	rgb(59, 87, 205)
HSL	hsl(228, 59%, 52%)
HSV	hsv(228, 71%, 80%)
CMYK	cmyk(71.2%, 57.6%, 0%, 19.6%)
CIE-LAB	lab(41.46, 29.72, -64.21)
CIE-LCH	lch(41.46, 70.75, 294.84°)
OKLab	oklab(50.66% -0.0042 -0.1851)
OKLCH	oklch(50.66% 0.185 268.7)
XYZ	xyz(16.2275, 12.1523, 59.2362)
Luminance	0.1215 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B57CD #CDB13B

analogous

#3BA0CD #3B57CD #683BCD

triadic

#3B57CD #CD3B57 #57CD3B

tetradic

#3B57CD #CD3BA0 #CDB13B #3BCD68

square

#3B57CD #CD3BA0 #CDB13B #3BCD68

split-complementary

#3B57CD #CD683B #A0CD3B

monochromatic

#1D2D71 #2940A2 #3B57CD #6C81D9 #9DABE6

Accessibility & contrast

On white

6.12

#3B57CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#3B57CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B57CD

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B57CD	#FFFFFF	#000000	##FFFFFF
##3B57CD	1.00	6.12	3.43	6.12
#FFFFFF	6.12	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069D1

Deuteranopia (green-blind)

#005BCB

Tritanopia (blue-blind)

#007489

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3b57cd;
/* rgb */ color: rgb(59, 87, 205);
/* oklch */ color: oklch(50.7% 0.185 268.7);

Tailwind

colors: {
  custom: {
    50: '#8486dd',
    500: '#3b57cd',
    950: '#000000',
  },
}

SCSS

$custom: #3b57cd;
$custom-light: #8486dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3b57cd",
  "rgb": {
    "r": 59,
    "g": 87,
    "b": 205
  },
  "hsl": {
    "h": 228.493,
    "s": 59.35,
    "l": 51.765
  },
  "oklch": {
    "l": 0.50663,
    "c": 0.18518,
    "h": 268.7
  },
  "luminance": 0.12154
}

Semantic roles & 50–950 ramp

primary

#3B57CD

secondary

#D2C692

accent

#C445E3

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3B57CD

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

Preview Lab → · Contrast checker → · Palette generator →