#355DB1#355DB1

#355DB1 is a mid, vivid blue. Relative luminance 0.118; OKLCH L 49.5% C 0.141 H 263.1°. Best body text is #FFFFFF at 6.26:1 contrast (WCAG AA passes).

Color values

HEX	#355DB1
RGB	rgb(53, 93, 177)
HSL	hsl(221, 54%, 45%)
HSV	hsv(221, 70%, 69%)
CMYK	cmyk(70.1%, 47.5%, 0%, 30.6%)
CIE-LAB	lab(40.83, 14.73, -48.93)
CIE-LCH	lch(40.83, 51.10, 286.75°)
OKLab	oklab(49.49% -0.017 -0.1402)
OKLCH	oklch(49.49% 0.141 263.1)
XYZ	xyz(13.3156, 11.7585, 43.1543)
Luminance	0.1176 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355DB1 #B18935

analogous

#359BB1 #355DB1 #4B35B1

triadic

#355DB1 #B1355D #5DB135

tetradic

#355DB1 #B1359B #B18935 #35B14B

square

#355DB1 #B1359B #B18935 #35B14B

split-complementary

#355DB1 #B14B35 #9BB135

monochromatic

#192C53 #274482 #355DB1 #577DCD #86A1DB

Accessibility & contrast

On white

6.26

#355DB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#355DB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355DB1

6.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355DB1	#FFFFFF	#000000	##FFFFFF
##355DB1	1.00	6.26	3.35	6.26
#FFFFFF	6.26	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3166B4

Deuteranopia (green-blind)

#145BAF

Tritanopia (blue-blind)

#00717E

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #355db1;
/* rgb */ color: rgb(53, 93, 177);
/* oklch */ color: oklch(49.5% 0.141 263.1);

Tailwind

colors: {
  custom: {
    50: '#7b8ac9',
    500: '#355db1',
    950: '#000000',
  },
}

SCSS

$custom: #355db1;
$custom-light: #7b8ac9;
$custom-dark: #000000;

JSON

{
  "hex": "#355db1",
  "rgb": {
    "r": 53,
    "g": 93,
    "b": 177
  },
  "hsl": {
    "h": 220.645,
    "s": 53.913,
    "l": 45.098
  },
  "oklch": {
    "l": 0.49489,
    "c": 0.14124,
    "h": 263.1
  },
  "luminance": 0.1176
}

Semantic roles & 50–950 ramp

primary

#355DB1

secondary

#C4AE7D

accent

#AE4BDD

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #355DB1

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

Preview Lab → · Contrast checker → · Palette generator →