#355ECF#355ECF

#355ECF is a mid, vivid blue. Relative luminance 0.133; OKLCH L 51.9% C 0.181 H 265.4°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#355ECF
RGB	rgb(53, 94, 207)
HSL	hsl(224, 62%, 51%)
HSV	hsv(224, 74%, 81%)
CMYK	cmyk(74.4%, 54.6%, 0%, 18.8%)
CIE-LAB	lab(43.16, 25.21, -62.60)
CIE-LCH	lch(43.16, 67.49, 291.93°)
OKLab	oklab(51.92% -0.0145 -0.1804)
OKLCH	oklch(51.92% 0.181 265.4)
XYZ	xyz(16.7294, 13.2654, 60.6982)
Luminance	0.1327 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355ECF #CFA635

analogous

#35ABCF #355ECF #5935CF

triadic

#355ECF #CF355E #5ECF35

tetradic

#355ECF #CF35AB #CFA635 #35CF59

square

#355ECF #CF35AB #CFA635 #35CF59

split-complementary

#355ECF #CF5935 #ABCF35

monochromatic

#1A316F #2647A1 #355ECF #6685DB #98ADE7

Accessibility & contrast

On white

5.75

#355ECF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#355ECF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355ECF

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355ECF	#FFFFFF	#000000	##FFFFFF
##355ECF	1.00	5.75	3.65	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006DD3

Deuteranopia (green-blind)

#005FCD

Tritanopia (blue-blind)

#007A8D

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #355ecf;
/* rgb */ color: rgb(53, 94, 207);
/* oklch */ color: oklch(51.9% 0.181 265.4);

Tailwind

colors: {
  custom: {
    50: '#818bde',
    500: '#355ecf',
    950: '#000000',
  },
}

SCSS

$custom: #355ecf;
$custom-light: #818bde;
$custom-dark: #000000;

JSON

{
  "hex": "#355ecf",
  "rgb": {
    "r": 53,
    "g": 94,
    "b": 207
  },
  "hsl": {
    "h": 224.026,
    "s": 61.6,
    "l": 50.98
  },
  "oklch": {
    "l": 0.51916,
    "c": 0.181,
    "h": 265.4
  },
  "luminance": 0.13267
}

Semantic roles & 50–950 ramp

primary

#355ECF

secondary

#D2C08E

accent

#BA43E5

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #355ECF

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

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