#315FC4#315FC4

#315FC4 is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.1% C 0.166 H 263.3°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#315FC4
RGB	rgb(49, 95, 196)
HSL	hsl(221, 60%, 48%)
HSV	hsv(221, 75%, 77%)
CMYK	cmyk(75%, 51.5%, 0%, 23.1%)
CIE-LAB	lab(42.49, 19.98, -57.34)
CIE-LCH	lch(42.49, 60.73, 289.21°)
OKLab	oklab(51.12% -0.0194 -0.165)
OKLCH	oklch(51.12% 0.166 263.3)
XYZ	xyz(15.3191, 12.8212, 53.8812)
Luminance	0.1282 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315FC4 #C49631

analogous

#31A9C4 #315FC4 #4C31C4

triadic

#315FC4 #C4315F #5FC431

tetradic

#315FC4 #C431A9 #C49631 #31C44C

square

#315FC4 #C431A9 #C49631 #31C44C

split-complementary

#315FC4 #C44C31 #A9C431

monochromatic

#193062 #254793 #315FC4 #5C82D6 #8DA8E2

Accessibility & contrast

On white

5.89

#315FC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#315FC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315FC4

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315FC4	#FFFFFF	#000000	##FFFFFF
##315FC4	1.00	5.89	3.56	5.89
#FFFFFF	5.89	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D6BC8

Deuteranopia (green-blind)

#005EC2

Tritanopia (blue-blind)

#007788

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #315fc4;
/* rgb */ color: rgb(49, 95, 196);
/* oklch */ color: oklch(51.1% 0.166 263.3);

Tailwind

colors: {
  custom: {
    50: '#7d8bd7',
    500: '#315fc4',
    950: '#000000',
  },
}

SCSS

$custom: #315fc4;
$custom-light: #7d8bd7;
$custom-dark: #000000;

JSON

{
  "hex": "#315fc4",
  "rgb": {
    "r": 49,
    "g": 95,
    "b": 196
  },
  "hsl": {
    "h": 221.224,
    "s": 60,
    "l": 48.039
  },
  "oklch": {
    "l": 0.51119,
    "c": 0.16614,
    "h": 263.3
  },
  "luminance": 0.12823
}

Semantic roles & 50–950 ramp

primary

#315FC4

secondary

#CDB684

accent

#B245E3

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #315FC4

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

Preview Lab → · Contrast checker → · Palette generator →