#315CB3#315CB3

#315CB3 is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.2% C 0.147 H 262.5°. Best body text is #FFFFFF at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#315CB3
RGB	rgb(49, 92, 179)
HSL	hsl(220, 57%, 45%)
HSV	hsv(220, 73%, 70%)
CMYK	cmyk(72.6%, 48.6%, 0%, 29.8%)
CIE-LAB	lab(40.51, 15.54, -50.63)
CIE-LCH	lch(40.51, 52.96, 287.06°)
OKLab	oklab(49.24% -0.019 -0.1453)
OKLCH	oklch(49.24% 0.147 262.5)
XYZ	xyz(13.2276, 11.5605, 44.1734)
Luminance	0.1156 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315CB3 #B38831

analogous

#319DB3 #315CB3 #4731B3

triadic

#315CB3 #B3315C #5CB331

tetradic

#315CB3 #B3319D #B38831 #31B347

square

#315CB3 #B3319D #B38831 #31B347

split-complementary

#315CB3 #B34731 #9DB331

monochromatic

#172B53 #244383 #315CB3 #527BD0 #82A0DD

Accessibility & contrast

On white

6.34

#315CB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#315CB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315CB3

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315CB3	#FFFFFF	#000000	##FFFFFF
##315CB3	1.00	6.34	3.31	6.34
#FFFFFF	6.34	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C66B6

Deuteranopia (green-blind)

#025AB1

Tritanopia (blue-blind)

#00717F

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #315cb3;
/* rgb */ color: rgb(49, 92, 179);
/* oklch */ color: oklch(49.2% 0.147 262.5);

Tailwind

colors: {
  custom: {
    50: '#7a89ca',
    500: '#315cb3',
    950: '#000000',
  },
}

SCSS

$custom: #315cb3;
$custom-light: #7a89ca;
$custom-dark: #000000;

JSON

{
  "hex": "#315cb3",
  "rgb": {
    "r": 49,
    "g": 92,
    "b": 179
  },
  "hsl": {
    "h": 220.154,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.49238,
    "c": 0.14654,
    "h": 262.5
  },
  "luminance": 0.11562
}

Semantic roles & 50–950 ramp

primary

#315CB3

secondary

#C6AD7A

accent

#AE48E0

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #315CB3

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

Preview Lab → · Contrast checker → · Palette generator →