#315FC5#315FC5

#315FC5 is a mid, vivid blue. Relative luminance 0.129; OKLCH L 51.2% C 0.167 H 263.4°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#315FC5
RGB	rgb(49, 95, 197)
HSL	hsl(221, 60%, 48%)
HSV	hsv(221, 75%, 77%)
CMYK	cmyk(75.1%, 51.8%, 0%, 22.7%)
CIE-LAB	lab(42.56, 20.36, -57.81)
CIE-LCH	lch(42.56, 61.29, 289.40°)
OKLab	oklab(51.19% -0.0193 -0.1664)
OKLCH	oklch(51.19% 0.167 263.4)
XYZ	xyz(15.4333, 12.8669, 54.4827)
Luminance	0.1287 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315FC5 #C59731

analogous

#31A9C5 #315FC5 #4D31C5

triadic

#315FC5 #C5315F #5FC531

tetradic

#315FC5 #C531A9 #C59731 #31C54D

square

#315FC5 #C531A9 #C59731 #31C54D

split-complementary

#315FC5 #C54D31 #A9C531

monochromatic

#193063 #254794 #315FC5 #5D83D7 #8EA8E3

Accessibility & contrast

On white

5.88

#315FC5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#315FC5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315FC5

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315FC5	#FFFFFF	#000000	##FFFFFF
##315FC5	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B6CC9

Deuteranopia (green-blind)

#005EC3

Tritanopia (blue-blind)

#007889

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #315fc5;
/* rgb */ color: rgb(49, 95, 197);
/* oklch */ color: oklch(51.2% 0.167 263.4);

Tailwind

colors: {
  custom: {
    50: '#7e8bd7',
    500: '#315fc5',
    950: '#000000',
  },
}

SCSS

$custom: #315fc5;
$custom-light: #7e8bd7;
$custom-dark: #000000;

JSON

{
  "hex": "#315fc5",
  "rgb": {
    "r": 49,
    "g": 95,
    "b": 197
  },
  "hsl": {
    "h": 221.351,
    "s": 60.163,
    "l": 48.235
  },
  "oklch": {
    "l": 0.51194,
    "c": 0.16749,
    "h": 263.4
  },
  "luminance": 0.12869
}

Semantic roles & 50–950 ramp

primary

#315FC5

secondary

#CDB785

accent

#B244E3

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #315FC5

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

Preview Lab → · Contrast checker → · Palette generator →