#355CB0#355CB0

#355CB0 is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.2% C 0.141 H 263.4°. Best body text is #FFFFFF at 6.35:1 contrast (WCAG AA passes).

Color values

HEX	#355CB0
RGB	rgb(53, 92, 176)
HSL	hsl(221, 54%, 45%)
HSV	hsv(221, 70%, 69%)
CMYK	cmyk(69.9%, 47.7%, 0%, 31%)
CIE-LAB	lab(40.48, 15.00, -48.90)
CIE-LCH	lch(40.48, 51.15, 287.06°)
OKLab	oklab(49.2% -0.0162 -0.1401)
OKLCH	oklch(49.2% 0.141 263.4)
XYZ	xyz(13.1290, 11.5444, 42.6023)
Luminance	0.1155 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355CB0 #B08935

analogous

#3599B0 #355CB0 #4C35B0

triadic

#355CB0 #B0355C #5CB035

tetradic

#355CB0 #B03599 #B08935 #35B04C

square

#355CB0 #B03599 #B08935 #35B04C

split-complementary

#355CB0 #B04C35 #99B035

monochromatic

#192B52 #274381 #355CB0 #567CCC #85A0DA

Accessibility & contrast

On white

6.35

#355CB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#355CB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355CB0

6.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355CB0	#FFFFFF	#000000	##FFFFFF
##355CB0	1.00	6.35	3.31	6.35
#FFFFFF	6.35	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3065B3

Deuteranopia (green-blind)

#125AAE

Tritanopia (blue-blind)

#00707D

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #355cb0;
/* rgb */ color: rgb(53, 92, 176);
/* oklch */ color: oklch(49.2% 0.141 263.4);

Tailwind

colors: {
  custom: {
    50: '#7b89c8',
    500: '#355cb0',
    950: '#000000',
  },
}

SCSS

$custom: #355cb0;
$custom-light: #7b89c8;
$custom-dark: #000000;

JSON

{
  "hex": "#355cb0",
  "rgb": {
    "r": 53,
    "g": 92,
    "b": 176
  },
  "hsl": {
    "h": 220.976,
    "s": 53.712,
    "l": 44.902
  },
  "oklch": {
    "l": 0.49202,
    "c": 0.14108,
    "h": 263.4
  },
  "luminance": 0.11546
}

Semantic roles & 50–950 ramp

primary

#355CB0

secondary

#C4AD7D

accent

#AF4BDD

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #355CB0

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

Preview Lab → · Contrast checker → · Palette generator →