#356CB9#356CB9

#356CB9 is a mid, vivid blue. Relative luminance 0.150; OKLCH L 53.3% C 0.134 H 257.3°. Best body text is #FFFFFF at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#356CB9
RGB	rgb(53, 108, 185)
HSL	hsl(215, 55%, 47%)
HSV	hsv(215, 71%, 73%)
CMYK	cmyk(71.4%, 41.6%, 0%, 27.5%)
CIE-LAB	lab(45.61, 8.10, -45.95)
CIE-LCH	lch(45.61, 46.66, 280.00°)
OKLab	oklab(53.33% -0.0295 -0.1312)
OKLCH	oklch(53.33% 0.134 257.3)
XYZ	xyz(15.5845, 14.9831, 47.9602)
Luminance	0.1499 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#356CB9 #B98235

analogous

#35AEB9 #356CB9 #4035B9

triadic

#356CB9 #B9356C #6CB935

tetradic

#356CB9 #B935AE #B98235 #35B940

square

#356CB9 #B935AE #B98235 #35B940

split-complementary

#356CB9 #B94035 #AEB935

monochromatic

#1A345A #275089 #356CB9 #5B8CD0 #8BADDE

Accessibility & contrast

On white

5.25

#356CB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.00

#356CB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #356CB9

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##356CB9	#FFFFFF	#000000	##FFFFFF
##356CB9	1.00	5.25	4.00	5.25
#FFFFFF	5.25	1.00	21.00	1.00
#000000	4.00	21.00	1.00	21.00
##FFFFFF	5.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4773BC

Deuteranopia (green-blind)

#3266B7

Tritanopia (blue-blind)

#007E89

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #356cb9;
/* rgb */ color: rgb(53, 108, 185);
/* oklch */ color: oklch(53.3% 0.134 257.3);

Tailwind

colors: {
  custom: {
    50: '#7c95ce',
    500: '#356cb9',
    950: '#000000',
  },
}

SCSS

$custom: #356cb9;
$custom-light: #7c95ce;
$custom-dark: #000000;

JSON

{
  "hex": "#356cb9",
  "rgb": {
    "r": 53,
    "g": 108,
    "b": 185
  },
  "hsl": {
    "h": 215,
    "s": 55.462,
    "l": 46.667
  },
  "oklch": {
    "l": 0.53334,
    "c": 0.13448,
    "h": 257.3
  },
  "luminance": 0.14985
}

Semantic roles & 50–950 ramp

primary

#356CB9

secondary

#C8AB82

accent

#A049DF

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #356CB9

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

Preview Lab → · Contrast checker → · Palette generator →