#315CA9#315CA9

#315CA9 is a mid, vivid blue. Relative luminance 0.112; OKLCH L 48.5% C 0.133 H 261.0°. Best body text is #FFFFFF at 6.49:1 contrast (WCAG AA passes).

Color values

HEX	#315CA9
RGB	rgb(49, 92, 169)
HSL	hsl(219, 55%, 43%)
HSV	hsv(219, 71%, 66%)
CMYK	cmyk(71%, 45.6%, 0%, 33.7%)
CIE-LAB	lab(39.87, 11.78, -45.76)
CIE-LCH	lch(39.87, 47.25, 284.43°)
OKLab	oklab(48.54% -0.0207 -0.131)
OKLCH	oklch(48.54% 0.133 261)
XYZ	xyz(12.2526, 11.1706, 39.0388)
Luminance	0.1117 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315CA9 #A97E31

analogous

#3198A9 #315CA9 #4231A9

triadic

#315CA9 #A9315C #5CA931

tetradic

#315CA9 #A93198 #A97E31 #31A942

square

#315CA9 #A93198 #A97E31 #31A942

split-complementary

#315CA9 #A94231 #98A931

monochromatic

#15284A #23427A #315CA9 #4C7ACB #7C9DD9

Accessibility & contrast

On white

6.49

#315CA9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#315CA9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315CA9

6.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315CA9	#FFFFFF	#000000	##FFFFFF
##315CA9	1.00	6.49	3.23	6.49
#FFFFFF	6.49	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3564AC

Deuteranopia (green-blind)

#1E59A7

Tritanopia (blue-blind)

#006E7A

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #315ca9;
/* rgb */ color: rgb(49, 92, 169);
/* oklch */ color: oklch(48.5% 0.133 261.0);

Tailwind

colors: {
  custom: {
    50: '#7889c3',
    500: '#315ca9',
    950: '#000000',
  },
}

SCSS

$custom: #315ca9;
$custom-light: #7889c3;
$custom-dark: #000000;

JSON

{
  "hex": "#315ca9",
  "rgb": {
    "r": 49,
    "g": 92,
    "b": 169
  },
  "hsl": {
    "h": 218.5,
    "s": 55.046,
    "l": 42.745
  },
  "oklch": {
    "l": 0.48538,
    "c": 0.1326,
    "h": 261
  },
  "luminance": 0.11172
}

Semantic roles & 50–950 ramp

primary

#315CA9

secondary

#C1A674

accent

#A949DE

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #315CA9

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

Preview Lab → · Contrast checker → · Palette generator →