#315FB7#315FB7

#315FB7 is a mid, vivid blue. Relative luminance 0.123; OKLCH L 50.2% C 0.148 H 261.8°. Best body text is #FFFFFF at 6.08:1 contrast (WCAG AA passes).

Color values

HEX	#315FB7
RGB	rgb(49, 95, 183)
HSL	hsl(219, 58%, 45%)
HSV	hsv(219, 73%, 72%)
CMYK	cmyk(73.2%, 48.1%, 0%, 28.2%)
CIE-LAB	lab(41.62, 15.09, -51.19)
CIE-LCH	lch(41.62, 53.37, 286.43°)
OKLab	oklab(50.17% -0.0211 -0.1469)
OKLCH	oklch(50.17% 0.148 261.8)
XYZ	xyz(13.9030, 12.2548, 46.4233)
Luminance	0.1226 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315FB7 #B78931

analogous

#31A2B7 #315FB7 #4631B7

triadic

#315FB7 #B7315F #5FB731

tetradic

#315FB7 #B731A2 #B78931 #31B746

square

#315FB7 #B731A2 #B78931 #31B746

split-complementary

#315FB7 #B74631 #A2B731

monochromatic

#172D56 #244687 #315FB7 #547FD1 #84A3DE

Accessibility & contrast

On white

6.08

#315FB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#315FB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315FB7

6.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315FB7	#FFFFFF	#000000	##FFFFFF
##315FB7	1.00	6.08	3.45	6.08
#FFFFFF	6.08	1.00	21.00	1.00
#000000	3.45	21.00	1.00	21.00
##FFFFFF	6.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F69BA

Deuteranopia (green-blind)

#065CB5

Tritanopia (blue-blind)

#007482

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #315fb7;
/* rgb */ color: rgb(49, 95, 183);
/* oklch */ color: oklch(50.2% 0.148 261.8);

Tailwind

colors: {
  custom: {
    50: '#7b8bcd',
    500: '#315fb7',
    950: '#000000',
  },
}

SCSS

$custom: #315fb7;
$custom-light: #7b8bcd;
$custom-dark: #000000;

JSON

{
  "hex": "#315fb7",
  "rgb": {
    "r": 49,
    "g": 95,
    "b": 183
  },
  "hsl": {
    "h": 219.403,
    "s": 57.759,
    "l": 45.49
  },
  "oklch": {
    "l": 0.50172,
    "c": 0.14839,
    "h": 261.8
  },
  "luminance": 0.12256
}

Semantic roles & 50–950 ramp

primary

#315FB7

secondary

#C8AE7C

accent

#AC47E1

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #315FB7

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

Preview Lab → · Contrast checker → · Palette generator →