#315CB7#315CB7

#315CB7 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.5% C 0.152 H 263.0°. Best body text is #FFFFFF at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#315CB7
RGB	rgb(49, 92, 183)
HSL	hsl(221, 58%, 45%)
HSV	hsv(221, 73%, 72%)
CMYK	cmyk(73.2%, 49.7%, 0%, 28.2%)
CIE-LAB	lab(40.78, 17.04, -52.55)
CIE-LCH	lch(40.78, 55.24, 287.97°)
OKLab	oklab(49.53% -0.0185 -0.1509)
OKLCH	oklch(49.53% 0.152 263)
XYZ	xyz(13.6380, 11.7247, 46.3349)
Luminance	0.1173 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315CB7 #B78C31

analogous

#319FB7 #315CB7 #4931B7

triadic

#315CB7 #B7315C #5CB731

tetradic

#315CB7 #B7319F #B78C31 #31B749

square

#315CB7 #B7319F #B78C31 #31B749

split-complementary

#315CB7 #B74931 #9FB731

monochromatic

#172B56 #244487 #315CB7 #547CD1 #84A1DE

Accessibility & contrast

On white

6.28

#315CB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#315CB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315CB7

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315CB7	#FFFFFF	#000000	##FFFFFF
##315CB7	1.00	6.28	3.35	6.28
#FFFFFF	6.28	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2767BA

Deuteranopia (green-blind)

#005AB5

Tritanopia (blue-blind)

#007281

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #315cb7;
/* rgb */ color: rgb(49, 92, 183);
/* oklch */ color: oklch(49.5% 0.152 263.0);

Tailwind

colors: {
  custom: {
    50: '#7b89cd',
    500: '#315cb7',
    950: '#000000',
  },
}

SCSS

$custom: #315cb7;
$custom-light: #7b89cd;
$custom-dark: #000000;

JSON

{
  "hex": "#315cb7",
  "rgb": {
    "r": 49,
    "g": 92,
    "b": 183
  },
  "hsl": {
    "h": 220.746,
    "s": 57.759,
    "l": 45.49
  },
  "oklch": {
    "l": 0.49527,
    "c": 0.15207,
    "h": 263
  },
  "luminance": 0.11726
}

Semantic roles & 50–950 ramp

primary

#315CB7

secondary

#C8AF7C

accent

#B047E1

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #315CB7

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

Preview Lab → · Contrast checker → · Palette generator →