#3557DA#3557DA

#3557DA is a mid, highly saturated blue. Relative luminance 0.126; OKLCH L 51.5% C 0.204 H 267.4°. Best body text is #FFFFFF at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#3557DA
RGB	rgb(53, 87, 218)
HSL	hsl(228, 69%, 53%)
HSV	hsv(228, 76%, 85%)
CMYK	cmyk(75.7%, 60.1%, 0%, 14.5%)
CIE-LAB	lab(42.21, 33.71, -70.46)
CIE-LCH	lch(42.21, 78.11, 295.57°)
OKLab	oklab(51.46% -0.0093 -0.2036)
OKLCH	oklch(51.46% 0.204 267.4)
XYZ	xyz(17.5269, 12.6333, 67.8308)
Luminance	0.1263 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3557DA #DAB835

analogous

#35AADA #3557DA #6535DA

triadic

#3557DA #DA3557 #57DA35

tetradic

#3557DA #DA35AA #DAB835 #35DA65

square

#3557DA #DA35AA #DAB835 #35DA65

split-complementary

#3557DA #DA6535 #AADA35

monochromatic

#172C7E #203EB1 #3557DA #6982E3 #9CADED

Accessibility & contrast

On white

5.95

#3557DA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#3557DA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3557DA

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3557DA	#FFFFFF	#000000	##FFFFFF
##3557DA	1.00	5.95	3.53	5.95
#FFFFFF	5.95	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CDE

Deuteranopia (green-blind)

#005CD7

Tritanopia (blue-blind)

#007890

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3557da;
/* rgb */ color: rgb(53, 87, 218);
/* oklch */ color: oklch(51.5% 0.204 267.4);

Tailwind

colors: {
  custom: {
    50: '#8486e6',
    500: '#3557da',
    950: '#000000',
  },
}

SCSS

$custom: #3557da;
$custom-light: #8486e6;
$custom-dark: #000000;

JSON

{
  "hex": "#3557da",
  "rgb": {
    "r": 53,
    "g": 87,
    "b": 218
  },
  "hsl": {
    "h": 227.636,
    "s": 69.038,
    "l": 53.137
  },
  "oklch": {
    "l": 0.51464,
    "c": 0.20381,
    "h": 267.4
  },
  "luminance": 0.12635
}

Semantic roles & 50–950 ramp

primary

#3557DA

secondary

#D9CA92

accent

#C83CEC

background

#F9F8FE

surface

#F1EFFD

border

#CBCAD5

text

#0D0B16

muted

#7E7C84

Preview Lab

Preview with #3557DA

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

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