#315DB4#315DB4

#315DB4 is a mid, vivid blue. Relative luminance 0.118; OKLCH L 49.5% C 0.147 H 262.3°. Best body text is #FFFFFF at 6.26:1 contrast (WCAG AA passes).

Color values

HEX	#315DB4
RGB	rgb(49, 93, 180)
HSL	hsl(220, 57%, 45%)
HSV	hsv(220, 73%, 71%)
CMYK	cmyk(72.8%, 48.3%, 0%, 29.4%)
CIE-LAB	lab(40.86, 15.26, -50.66)
CIE-LCH	lch(40.86, 52.90, 286.77°)
OKLab	oklab(49.53% -0.0198 -0.1454)
OKLCH	oklch(49.53% 0.147 262.3)
XYZ	xyz(13.4163, 11.7755, 44.7370)
Luminance	0.1178 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315DB4 #B48831

analogous

#319FB4 #315DB4 #4631B4

triadic

#315DB4 #B4315D #5DB431

tetradic

#315DB4 #B4319F #B48831 #31B446

square

#315DB4 #B4319F #B48831 #31B446

split-complementary

#315DB4 #B44631 #9FB431

monochromatic

#172B54 #244484 #315DB4 #527CD0 #82A1DD

Accessibility & contrast

On white

6.26

#315DB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#315DB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315DB4

6.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315DB4	#FFFFFF	#000000	##FFFFFF
##315DB4	1.00	6.26	3.36	6.26
#FFFFFF	6.26	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D67B7

Deuteranopia (green-blind)

#055BB2

Tritanopia (blue-blind)

#007280

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #315db4;
/* rgb */ color: rgb(49, 93, 180);
/* oklch */ color: oklch(49.5% 0.147 262.3);

Tailwind

colors: {
  custom: {
    50: '#7a8acb',
    500: '#315db4',
    950: '#000000',
  },
}

SCSS

$custom: #315db4;
$custom-light: #7a8acb;
$custom-dark: #000000;

JSON

{
  "hex": "#315db4",
  "rgb": {
    "r": 49,
    "g": 93,
    "b": 180
  },
  "hsl": {
    "h": 219.847,
    "s": 57.205,
    "l": 44.902
  },
  "oklch": {
    "l": 0.49526,
    "c": 0.1467,
    "h": 262.3
  },
  "luminance": 0.11777
}

Semantic roles & 50–950 ramp

primary

#315DB4

secondary

#C6AD7B

accent

#AD47E0

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #315DB4

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

Preview Lab → · Contrast checker → · Palette generator →