#356BB9#356BB9

#356BB9 is a mid, vivid blue. Relative luminance 0.148; OKLCH L 53.1% C 0.136 H 257.8°. Best body text is #FFFFFF at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#356BB9
RGB	rgb(53, 107, 185)
HSL	hsl(215, 55%, 47%)
HSV	hsv(215, 71%, 73%)
CMYK	cmyk(71.4%, 42.2%, 0%, 27.5%)
CIE-LAB	lab(45.32, 8.73, -46.41)
CIE-LCH	lch(45.32, 47.22, 280.66°)
OKLab	oklab(53.11% -0.0286 -0.1326)
OKLCH	oklch(53.11% 0.136 257.8)
XYZ	xyz(15.4797, 14.7734, 47.9253)
Luminance	0.1477 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#356BB9 #B98335

analogous

#35ADB9 #356BB9 #4135B9

triadic

#356BB9 #B9356B #6BB935

tetradic

#356BB9 #B935AD #B98335 #35B941

square

#356BB9 #B935AD #B98335 #35B941

split-complementary

#356BB9 #B94135 #ADB935

monochromatic

#1A345A #274F89 #356BB9 #5B8BD0 #8BADDE

Accessibility & contrast

On white

5.31

#356BB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.95

#356BB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #356BB9

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##356BB9	#FFFFFF	#000000	##FFFFFF
##356BB9	1.00	5.31	3.95	5.31
#FFFFFF	5.31	1.00	21.00	1.00
#000000	3.95	21.00	1.00	21.00
##FFFFFF	5.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4672BC

Deuteranopia (green-blind)

#3066B7

Tritanopia (blue-blind)

#007D89

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #356bb9;
/* rgb */ color: rgb(53, 107, 185);
/* oklch */ color: oklch(53.1% 0.136 257.8);

Tailwind

colors: {
  custom: {
    50: '#7c94ce',
    500: '#356bb9',
    950: '#000000',
  },
}

SCSS

$custom: #356bb9;
$custom-light: #7c94ce;
$custom-dark: #000000;

JSON

{
  "hex": "#356bb9",
  "rgb": {
    "r": 53,
    "g": 107,
    "b": 185
  },
  "hsl": {
    "h": 215.455,
    "s": 55.462,
    "l": 46.667
  },
  "oklch": {
    "l": 0.5311,
    "c": 0.13561,
    "h": 257.8
  },
  "luminance": 0.14775
}

Semantic roles & 50–950 ramp

primary

#356BB9

secondary

#C8AB82

accent

#A249DF

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #356BB9

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

Preview Lab → · Contrast checker → · Palette generator →