#355DAB#355DAB

#355DAB is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.1% C 0.133 H 262.2°. Best body text is #FFFFFF at 6.35:1 contrast (WCAG AA passes).

Color values

HEX	#355DAB
RGB	rgb(53, 93, 171)
HSL	hsl(220, 53%, 44%)
HSV	hsv(220, 69%, 67%)
CMYK	cmyk(69%, 45.6%, 0%, 32.9%)
CIE-LAB	lab(40.45, 12.50, -46.00)
CIE-LCH	lch(40.45, 47.67, 285.21°)
OKLab	oklab(49.08% -0.018 -0.1316)
OKLCH	oklch(49.08% 0.133 262.2)
XYZ	xyz(12.7306, 11.5246, 40.0737)
Luminance	0.1153 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355DAB #AB8335

analogous

#3598AB #355DAB #4835AB

triadic

#355DAB #AB355D #5DAB35

tetradic

#355DAB #AB3598 #AB8335 #35AB48

square

#355DAB #AB3598 #AB8335 #35AB48

split-complementary

#355DAB #AB4835 #98AB35

monochromatic

#182A4E #27447C #355DAB #537CCA #829FD8

Accessibility & contrast

On white

6.35

#355DAB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#355DAB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355DAB

6.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355DAB	#FFFFFF	#000000	##FFFFFF
##355DAB	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)

#3665AE

Deuteranopia (green-blind)

#205AA9

Tritanopia (blue-blind)

#006F7B

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #355dab;
/* rgb */ color: rgb(53, 93, 171);
/* oklch */ color: oklch(49.1% 0.133 262.2);

Tailwind

colors: {
  custom: {
    50: '#7a8ac4',
    500: '#355dab',
    950: '#000000',
  },
}

SCSS

$custom: #355dab;
$custom-light: #7a8ac4;
$custom-dark: #000000;

JSON

{
  "hex": "#355dab",
  "rgb": {
    "r": 53,
    "g": 93,
    "b": 171
  },
  "hsl": {
    "h": 219.661,
    "s": 52.679,
    "l": 43.922
  },
  "oklch": {
    "l": 0.49075,
    "c": 0.13282,
    "h": 262.2
  },
  "luminance": 0.11526
}

Semantic roles & 50–950 ramp

primary

#355DAB

secondary

#C2A97A

accent

#AB4CDC

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #355DAB

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

Preview Lab → · Contrast checker → · Palette generator →