#3A57CC#3A57CC

#3A57CC is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.5% C 0.184 H 268.4°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#3A57CC
RGB	rgb(58, 87, 204)
HSL	hsl(228, 59%, 51%)
HSV	hsv(228, 72%, 80%)
CMYK	cmyk(71.6%, 57.4%, 0%, 20%)
CIE-LAB	lab(41.33, 29.23, -63.83)
CIE-LCH	lch(41.33, 70.21, 294.60°)
OKLab	oklab(50.53% -0.0051 -0.184)
OKLCH	oklch(50.53% 0.184 268.4)
XYZ	xyz(16.0484, 12.0739, 58.5998)
Luminance	0.1208 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A57CC #CCAF3A

analogous

#3AA0CC #3A57CC #663ACC

triadic

#3A57CC #CC3A57 #57CC3A

tetradic

#3A57CC #CC3AA0 #CCAF3A #3ACC66

square

#3A57CC #CC3AA0 #CCAF3A #3ACC66

split-complementary

#3A57CC #CC663A #A0CC3A

monochromatic

#1D2D6F #2941A0 #3A57CC #6B80D9 #9BAAE5

Accessibility & contrast

On white

6.15

#3A57CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#3A57CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A57CC

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A57CC	#FFFFFF	#000000	##FFFFFF
##3A57CC	1.00	6.15	3.42	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068D0

Deuteranopia (green-blind)

#005BCA

Tritanopia (blue-blind)

#007489

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3a57cc;
/* rgb */ color: rgb(58, 87, 204);
/* oklch */ color: oklch(50.5% 0.184 268.4);

Tailwind

colors: {
  custom: {
    50: '#8386dc',
    500: '#3a57cc',
    950: '#000000',
  },
}

SCSS

$custom: #3a57cc;
$custom-light: #8386dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3a57cc",
  "rgb": {
    "r": 58,
    "g": 87,
    "b": 204
  },
  "hsl": {
    "h": 228.082,
    "s": 58.871,
    "l": 51.373
  },
  "oklch": {
    "l": 0.50533,
    "c": 0.18412,
    "h": 268.4
  },
  "luminance": 0.12076
}

Semantic roles & 50–950 ramp

primary

#3A57CC

secondary

#D1C491

accent

#C346E2

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3A57CC

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

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