#355BC9#355BC9

#355BC9 is a mid, vivid blue. Relative luminance 0.125; OKLCH L 50.8% C 0.177 H 265.9°. Best body text is #FFFFFF at 6.02:1 contrast (WCAG AA passes).

Color values

HEX	#355BC9
RGB	rgb(53, 91, 201)
HSL	hsl(225, 58%, 50%)
HSV	hsv(225, 74%, 79%)
CMYK	cmyk(73.6%, 54.7%, 0%, 21.2%)
CIE-LAB	lab(41.93, 24.93, -61.14)
CIE-LCH	lch(41.93, 66.03, 292.18°)
OKLab	oklab(50.85% -0.0127 -0.1762)
OKLCH	oklch(50.85% 0.177 265.9)
XYZ	xyz(15.7482, 12.4544, 56.8210)
Luminance	0.1246 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355BC9 #C9A335

analogous

#35A5C9 #355BC9 #5935C9

triadic

#355BC9 #C9355B #5BC935

tetradic

#355BC9 #C935A5 #C9A335 #35C959

square

#355BC9 #C935A5 #C9A335 #35C959

split-complementary

#355BC9 #C95935 #A5C935

monochromatic

#1B2F68 #284599 #355BC9 #6582D6 #95A9E3

Accessibility & contrast

On white

6.02

#355BC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#355BC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355BC9

6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355BC9	#FFFFFF	#000000	##FFFFFF
##355BC9	1.00	6.02	3.49	6.02
#FFFFFF	6.02	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ACD

Deuteranopia (green-blind)

#005CC7

Tritanopia (blue-blind)

#007689

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #355bc9;
/* rgb */ color: rgb(53, 91, 201);
/* oklch */ color: oklch(50.8% 0.177 265.9);

Tailwind

colors: {
  custom: {
    50: '#8088da',
    500: '#355bc9',
    950: '#000000',
  },
}

SCSS

$custom: #355bc9;
$custom-light: #8088da;
$custom-dark: #000000;

JSON

{
  "hex": "#355bc9",
  "rgb": {
    "r": 53,
    "g": 91,
    "b": 201
  },
  "hsl": {
    "h": 224.595,
    "s": 58.268,
    "l": 49.804
  },
  "oklch": {
    "l": 0.50849,
    "c": 0.17664,
    "h": 265.9
  },
  "luminance": 0.12456
}

Semantic roles & 50–950 ramp

primary

#355BC9

secondary

#CEBD8B

accent

#BA46E1

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #355BC9

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

Preview Lab → · Contrast checker → · Palette generator →