#315DB5#315DB5

#315DB5 is a mid, vivid blue. Relative luminance 0.118; OKLCH L 49.6% C 0.148 H 262.4°. Best body text is #FFFFFF at 6.24:1 contrast (WCAG AA passes).

Color values

HEX	#315DB5
RGB	rgb(49, 93, 181)
HSL	hsl(220, 57%, 45%)
HSV	hsv(220, 73%, 71%)
CMYK	cmyk(72.9%, 48.6%, 0%, 29%)
CIE-LAB	lab(40.92, 15.64, -51.14)
CIE-LCH	lch(40.92, 53.47, 287.00°)
OKLab	oklab(49.6% -0.0196 -0.1468)
OKLCH	oklch(49.6% 0.148 262.4)
XYZ	xyz(13.5185, 11.8164, 45.2754)
Luminance	0.1182 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315DB5 #B58931

analogous

#319FB5 #315DB5 #4731B5

triadic

#315DB5 #B5315D #5DB531

tetradic

#315DB5 #B5319F #B58931 #31B547

square

#315DB5 #B5319F #B58931 #31B547

split-complementary

#315DB5 #B54731 #9FB531

monochromatic

#172C55 #244485 #315DB5 #537DD0 #83A1DD

Accessibility & contrast

On white

6.24

#315DB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#315DB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315DB5

6.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315DB5	#FFFFFF	#000000	##FFFFFF
##315DB5	1.00	6.24	3.36	6.24
#FFFFFF	6.24	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C67B8

Deuteranopia (green-blind)

#005BB3

Tritanopia (blue-blind)

#007280

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #315db5;
/* rgb */ color: rgb(49, 93, 181);
/* oklch */ color: oklch(49.6% 0.148 262.4);

Tailwind

colors: {
  custom: {
    50: '#7a8acc',
    500: '#315db5',
    950: '#000000',
  },
}

SCSS

$custom: #315db5;
$custom-light: #7a8acc;
$custom-dark: #000000;

JSON

{
  "hex": "#315db5",
  "rgb": {
    "r": 49,
    "g": 93,
    "b": 181
  },
  "hsl": {
    "h": 220,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.49597,
    "c": 0.14809,
    "h": 262.4
  },
  "luminance": 0.11818
}

Semantic roles & 50–950 ramp

primary

#315DB5

secondary

#C7AE7B

accent

#AD47E1

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #315DB5

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

Preview Lab → · Contrast checker → · Palette generator →