#355DA8#355DA8

#355DA8 is a mid, vivid blue. Relative luminance 0.114; OKLCH L 48.9% C 0.129 H 261.7°. Best body text is #FFFFFF at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#355DA8
RGB	rgb(53, 93, 168)
HSL	hsl(219, 52%, 43%)
HSV	hsv(219, 68%, 66%)
CMYK	cmyk(68.5%, 44.6%, 0%, 34.1%)
CIE-LAB	lab(40.27, 11.39, -44.52)
CIE-LCH	lch(40.27, 45.96, 284.35°)
OKLab	oklab(48.87% -0.0185 -0.1272)
OKLCH	oklch(48.87% 0.129 261.7)
XYZ	xyz(12.4479, 11.4115, 38.5848)
Luminance	0.1141 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355DA8 #A88035

analogous

#3596A8 #355DA8 #4635A8

triadic

#355DA8 #A8355D #5DA835

tetradic

#355DA8 #A83596 #A88035 #35A846

square

#355DA8 #A83596 #A88035 #35A846

split-complementary

#355DA8 #A84635 #96A835

monochromatic

#18294B #264379 #355DA8 #527BC8 #809FD7

Accessibility & contrast

On white

6.40

#355DA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#355DA8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355DA8

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355DA8	#FFFFFF	#000000	##FFFFFF
##355DA8	1.00	6.40	3.28	6.40
#FFFFFF	6.40	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3965AB

Deuteranopia (green-blind)

#245AA6

Tritanopia (blue-blind)

#006E7A

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #355da8;
/* rgb */ color: rgb(53, 93, 168);
/* oklch */ color: oklch(48.9% 0.129 261.7);

Tailwind

colors: {
  custom: {
    50: '#798ac2',
    500: '#355da8',
    950: '#000000',
  },
}

SCSS

$custom: #355da8;
$custom-light: #798ac2;
$custom-dark: #000000;

JSON

{
  "hex": "#355da8",
  "rgb": {
    "r": 53,
    "g": 93,
    "b": 168
  },
  "hsl": {
    "h": 219.13,
    "s": 52.036,
    "l": 43.333
  },
  "oklch": {
    "l": 0.48873,
    "c": 0.12859,
    "h": 261.7
  },
  "luminance": 0.11413
}

Semantic roles & 50–950 ramp

primary

#355DA8

secondary

#C0A778

accent

#AA4CDB

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #355DA8

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

Preview Lab → · Contrast checker → · Palette generator →