#3A57CA#3A57CA

#3A57CA is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.4% C 0.181 H 268.4°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#3A57CA
RGB	rgb(58, 87, 202)
HSL	hsl(228, 58%, 51%)
HSV	hsv(228, 71%, 79%)
CMYK	cmyk(71.3%, 56.9%, 0%, 20.8%)
CIE-LAB	lab(41.18, 28.51, -62.92)
CIE-LCH	lch(41.18, 69.08, 294.37°)
OKLab	oklab(50.37% -0.0052 -0.1814)
OKLCH	oklch(50.37% 0.181 268.4)
XYZ	xyz(15.8101, 11.9786, 57.3445)
Luminance	0.1198 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A57CA #CAAD3A

analogous

#3A9FCA #3A57CA #653ACA

triadic

#3A57CA #CA3A57 #57CA3A

tetradic

#3A57CA #CA3A9F #CAAD3A #3ACA65

square

#3A57CA #CA3A9F #CAAD3A #3ACA65

split-complementary

#3A57CA #CA653A #9FCA3A

monochromatic

#1D2D6C #2A419D #3A57CA #6A80D7 #9AA9E4

Accessibility & contrast

On white

6.18

#3A57CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#3A57CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A57CA

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A57CA	#FFFFFF	#000000	##FFFFFF
##3A57CA	1.00	6.18	3.40	6.18
#FFFFFF	6.18	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068CE

Deuteranopia (green-blind)

#005BC8

Tritanopia (blue-blind)

#007388

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3a57ca;
/* rgb */ color: rgb(58, 87, 202);
/* oklch */ color: oklch(50.4% 0.181 268.4);

Tailwind

colors: {
  custom: {
    50: '#8386db',
    500: '#3a57ca',
    950: '#000000',
  },
}

SCSS

$custom: #3a57ca;
$custom-light: #8386db;
$custom-dark: #000000;

JSON

{
  "hex": "#3a57ca",
  "rgb": {
    "r": 58,
    "g": 87,
    "b": 202
  },
  "hsl": {
    "h": 227.917,
    "s": 57.6,
    "l": 50.98
  },
  "oklch": {
    "l": 0.50372,
    "c": 0.18145,
    "h": 268.4
  },
  "luminance": 0.1198
}

Semantic roles & 50–950 ramp

primary

#3A57CA

secondary

#D0C390

accent

#C247E1

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3A57CA

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

Preview Lab → · Contrast checker → · Palette generator →