#356AB9#356AB9

#356AB9 is a mid, vivid blue. Relative luminance 0.146; OKLCH L 52.9% C 0.137 H 258.3°. Best body text is #FFFFFF at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#356AB9
RGB	rgb(53, 106, 185)
HSL	hsl(216, 55%, 47%)
HSV	hsv(216, 71%, 73%)
CMYK	cmyk(71.4%, 42.7%, 0%, 27.5%)
CIE-LAB	lab(45.03, 9.36, -46.87)
CIE-LCH	lch(45.03, 47.79, 281.30°)
OKLab	oklab(52.89% -0.0276 -0.1339)
OKLCH	oklch(52.89% 0.137 258.3)
XYZ	xyz(15.3760, 14.5661, 47.8907)
Luminance	0.1457 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#356AB9 #B98435

analogous

#35ACB9 #356AB9 #4235B9

triadic

#356AB9 #B9356A #6AB935

tetradic

#356AB9 #B935AC #B98435 #35B942

square

#356AB9 #B935AC #B98435 #35B942

split-complementary

#356AB9 #B94235 #ACB935

monochromatic

#1A335A #274F89 #356AB9 #5B8AD0 #8BACDE

Accessibility & contrast

On white

5.37

#356AB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.91

#356AB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #356AB9

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##356AB9	#FFFFFF	#000000	##FFFFFF
##356AB9	1.00	5.37	3.91	5.37
#FFFFFF	5.37	1.00	21.00	1.00
#000000	3.91	21.00	1.00	21.00
##FFFFFF	5.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4471BC

Deuteranopia (green-blind)

#2D65B7

Tritanopia (blue-blind)

#007C88

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #356ab9;
/* rgb */ color: rgb(53, 106, 185);
/* oklch */ color: oklch(52.9% 0.137 258.3);

Tailwind

colors: {
  custom: {
    50: '#7c94ce',
    500: '#356ab9',
    950: '#000000',
  },
}

SCSS

$custom: #356ab9;
$custom-light: #7c94ce;
$custom-dark: #000000;

JSON

{
  "hex": "#356ab9",
  "rgb": {
    "r": 53,
    "g": 106,
    "b": 185
  },
  "hsl": {
    "h": 215.909,
    "s": 55.462,
    "l": 46.667
  },
  "oklch": {
    "l": 0.52886,
    "c": 0.13676,
    "h": 258.3
  },
  "luminance": 0.14568
}

Semantic roles & 50–950 ramp

primary

#356AB9

secondary

#C8AC82

accent

#A349DF

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #356AB9

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

Preview Lab → · Contrast checker → · Palette generator →