#315BC3#315BC3

#315BC3 is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.2% C 0.170 H 264.5°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#315BC3
RGB	rgb(49, 91, 195)
HSL	hsl(223, 60%, 48%)
HSV	hsv(223, 75%, 76%)
CMYK	cmyk(74.9%, 53.3%, 0%, 23.5%)
CIE-LAB	lab(41.33, 22.20, -58.64)
CIE-LCH	lch(41.33, 62.70, 290.74°)
OKLab	oklab(50.22% -0.0164 -0.1689)
OKLCH	oklch(50.22% 0.17 264.5)
XYZ	xyz(14.8545, 12.0736, 53.1667)
Luminance	0.1207 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315BC3 #C39931

analogous

#31A4C3 #315BC3 #5031C3

triadic

#315BC3 #C3315B #5BC331

tetradic

#315BC3 #C331A4 #C39931 #31C350

square

#315BC3 #C331A4 #C39931 #31C350

split-complementary

#315BC3 #C35031 #A4C331

monochromatic

#182D61 #254492 #315BC3 #5B7FD6 #8CA5E2

Accessibility & contrast

On white

6.15

#315BC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#315BC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315BC3

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315BC3	#FFFFFF	#000000	##FFFFFF
##315BC3	1.00	6.15	3.42	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A69C7

Deuteranopia (green-blind)

#005BC1

Tritanopia (blue-blind)

#007486

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #315bc3;
/* rgb */ color: rgb(49, 91, 195);
/* oklch */ color: oklch(50.2% 0.170 264.5);

Tailwind

colors: {
  custom: {
    50: '#7d88d6',
    500: '#315bc3',
    950: '#000000',
  },
}

SCSS

$custom: #315bc3;
$custom-light: #7d88d6;
$custom-dark: #000000;

JSON

{
  "hex": "#315bc3",
  "rgb": {
    "r": 49,
    "g": 91,
    "b": 195
  },
  "hsl": {
    "h": 222.74,
    "s": 59.836,
    "l": 47.843
  },
  "oklch": {
    "l": 0.50216,
    "c": 0.16969,
    "h": 264.5
  },
  "luminance": 0.12075
}

Semantic roles & 50–950 ramp

primary

#315BC3

secondary

#CCB783

accent

#B545E3

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #315BC3

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

Preview Lab → · Contrast checker → · Palette generator →