#3557AF#3557AF

#3557AF is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.1% C 0.146 H 265.4°. Best body text is #FFFFFF at 6.70:1 contrast (WCAG AA passes).

Color values

HEX	#3557AF
RGB	rgb(53, 87, 175)
HSL	hsl(223, 54%, 45%)
HSV	hsv(223, 70%, 69%)
CMYK	cmyk(69.7%, 50.3%, 0%, 31.4%)
CIE-LAB	lab(39.01, 17.89, -50.67)
CIE-LCH	lch(39.01, 53.74, 289.45°)
OKLab	oklab(48.06% -0.0118 -0.1454)
OKLCH	oklch(48.06% 0.146 265.4)
XYZ	xyz(12.6116, 10.6672, 41.9435)
Luminance	0.1067 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3557AF #AF8D35

analogous

#3594AF #3557AF #5035AF

triadic

#3557AF #AF3557 #57AF35

tetradic

#3557AF #AF3594 #AF8D35 #35AF50

square

#3557AF #AF3594 #AF8D35 #35AF50

split-complementary

#3557AF #AF5035 #94AF35

monochromatic

#192851 #274080 #3557AF #5676CC #859CDA

Accessibility & contrast

On white

6.70

#3557AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#3557AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3557AF

6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3557AF	#FFFFFF	#000000	##FFFFFF
##3557AF	1.00	6.70	3.13	6.70
#FFFFFF	6.70	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2462B2

Deuteranopia (green-blind)

#0057AD

Tritanopia (blue-blind)

#006C7B

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3557af;
/* rgb */ color: rgb(53, 87, 175);
/* oklch */ color: oklch(48.1% 0.146 265.4);

Tailwind

colors: {
  custom: {
    50: '#7b85c7',
    500: '#3557af',
    950: '#000000',
  },
}

SCSS

$custom: #3557af;
$custom-light: #7b85c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3557af",
  "rgb": {
    "r": 53,
    "g": 87,
    "b": 175
  },
  "hsl": {
    "h": 223.279,
    "s": 53.509,
    "l": 44.706
  },
  "oklch": {
    "l": 0.48059,
    "c": 0.14592,
    "h": 265.4
  },
  "luminance": 0.10668
}

Semantic roles & 50–950 ramp

primary

#3557AF

secondary

#C4B07C

accent

#B44BDD

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3557AF

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

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