#315CA8#315CA8

#315CA8 is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.5% C 0.131 H 260.9°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#315CA8
RGB	rgb(49, 92, 168)
HSL	hsl(218, 55%, 43%)
HSV	hsv(218, 71%, 66%)
CMYK	cmyk(70.8%, 45.2%, 0%, 34.1%)
CIE-LAB	lab(39.80, 11.40, -45.27)
CIE-LCH	lch(39.80, 46.68, 284.14°)
OKLab	oklab(48.47% -0.0208 -0.1295)
OKLCH	oklch(48.47% 0.131 260.9)
XYZ	xyz(12.1591, 11.1331, 38.5463)
Luminance	0.1113 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315CA8 #A87D31

analogous

#3198A8 #315CA8 #4131A8

triadic

#315CA8 #A8315C #5CA831

tetradic

#315CA8 #A83198 #A87D31 #31A841

square

#315CA8 #A83198 #A87D31 #31A841

split-complementary

#315CA8 #A84131 #98A831

monochromatic

#152849 #234279 #315CA8 #4C79CB #7B9DD8

Accessibility & contrast

On white

6.51

#315CA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#315CA8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315CA8

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315CA8	#FFFFFF	#000000	##FFFFFF
##315CA8	1.00	6.51	3.23	6.51
#FFFFFF	6.51	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3664AB

Deuteranopia (green-blind)

#2059A6

Tritanopia (blue-blind)

#006E7A

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #315ca8;
/* rgb */ color: rgb(49, 92, 168);
/* oklch */ color: oklch(48.5% 0.131 260.9);

Tailwind

colors: {
  custom: {
    50: '#7889c2',
    500: '#315ca8',
    950: '#000000',
  },
}

SCSS

$custom: #315ca8;
$custom-light: #7889c2;
$custom-dark: #000000;

JSON

{
  "hex": "#315ca8",
  "rgb": {
    "r": 49,
    "g": 92,
    "b": 168
  },
  "hsl": {
    "h": 218.319,
    "s": 54.839,
    "l": 42.549
  },
  "oklch": {
    "l": 0.4847,
    "c": 0.13121,
    "h": 260.9
  },
  "luminance": 0.11134
}

Semantic roles & 50–950 ramp

primary

#315CA8

secondary

#C1A574

accent

#A84ADE

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #315CA8

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

Preview Lab → · Contrast checker → · Palette generator →