#315EB3#315EB3

#315EB3 is a mid, vivid blue. Relative luminance 0.119; OKLCH L 49.7% C 0.144 H 261.7°. Best body text is #FFFFFF at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#315EB3
RGB	rgb(49, 94, 179)
HSL	hsl(219, 57%, 45%)
HSV	hsv(219, 73%, 70%)
CMYK	cmyk(72.6%, 47.5%, 0%, 29.8%)
CIE-LAB	lab(41.08, 14.24, -49.72)
CIE-LCH	lch(41.08, 51.72, 285.98°)
OKLab	oklab(49.67% -0.0208 -0.1426)
OKLCH	oklch(49.67% 0.144 261.7)
XYZ	xyz(13.4031, 11.9116, 44.2319)
Luminance	0.1191 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315EB3 #B38631

analogous

#319FB3 #315EB3 #4531B3

triadic

#315EB3 #B3315E #5EB331

tetradic

#315EB3 #B3319F #B38631 #31B345

square

#315EB3 #B3319F #B38631 #31B345

split-complementary

#315EB3 #B34531 #9FB331

monochromatic

#172C53 #244583 #315EB3 #527DD0 #82A1DD

Accessibility & contrast

On white

6.21

#315EB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#315EB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315EB3

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315EB3	#FFFFFF	#000000	##FFFFFF
##315EB3	1.00	6.21	3.38	6.21
#FFFFFF	6.21	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3167B6

Deuteranopia (green-blind)

#0F5BB1

Tritanopia (blue-blind)

#007280

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #315eb3;
/* rgb */ color: rgb(49, 94, 179);
/* oklch */ color: oklch(49.7% 0.144 261.7);

Tailwind

colors: {
  custom: {
    50: '#7a8bca',
    500: '#315eb3',
    950: '#000000',
  },
}

SCSS

$custom: #315eb3;
$custom-light: #7a8bca;
$custom-dark: #000000;

JSON

{
  "hex": "#315eb3",
  "rgb": {
    "r": 49,
    "g": 94,
    "b": 179
  },
  "hsl": {
    "h": 219.231,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.49672,
    "c": 0.14409,
    "h": 261.7
  },
  "luminance": 0.11913
}

Semantic roles & 50–950 ramp

primary

#315EB3

secondary

#C6AC7A

accent

#AB48E0

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #315EB3

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

Preview Lab → · Contrast checker → · Palette generator →