#315DB3#315DB3

#315DB3 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.5% C 0.145 H 262.1°. Best body text is #FFFFFF at 6.27:1 contrast (WCAG AA passes).

Color values

HEX	#315DB3
RGB	rgb(49, 93, 179)
HSL	hsl(220, 57%, 45%)
HSV	hsv(220, 73%, 70%)
CMYK	cmyk(72.6%, 48%, 0%, 29.8%)
CIE-LAB	lab(40.79, 14.89, -50.17)
CIE-LCH	lch(40.79, 52.34, 286.53°)
OKLab	oklab(49.46% -0.0199 -0.1439)
OKLCH	oklch(49.46% 0.145 262.1)
XYZ	xyz(13.3148, 11.7349, 44.2024)
Luminance	0.1174 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315DB3 #B38731

analogous

#319EB3 #315DB3 #4631B3

triadic

#315DB3 #B3315D #5DB331

tetradic

#315DB3 #B3319E #B38731 #31B346

square

#315DB3 #B3319E #B38731 #31B346

split-complementary

#315DB3 #B34631 #9EB331

monochromatic

#172B53 #244483 #315DB3 #527CD0 #82A1DD

Accessibility & contrast

On white

6.27

#315DB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#315DB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315DB3

6.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315DB3	#FFFFFF	#000000	##FFFFFF
##315DB3	1.00	6.27	3.35	6.27
#FFFFFF	6.27	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E67B6

Deuteranopia (green-blind)

#095BB1

Tritanopia (blue-blind)

#00717F

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #315db3;
/* rgb */ color: rgb(49, 93, 179);
/* oklch */ color: oklch(49.5% 0.145 262.1);

Tailwind

colors: {
  custom: {
    50: '#7a8aca',
    500: '#315db3',
    950: '#000000',
  },
}

SCSS

$custom: #315db3;
$custom-light: #7a8aca;
$custom-dark: #000000;

JSON

{
  "hex": "#315db3",
  "rgb": {
    "r": 49,
    "g": 93,
    "b": 179
  },
  "hsl": {
    "h": 219.692,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.49455,
    "c": 0.14531,
    "h": 262.1
  },
  "luminance": 0.11736
}

Semantic roles & 50–950 ramp

primary

#315DB3

secondary

#C6AC7A

accent

#AD48E0

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #315DB3

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

Preview Lab → · Contrast checker → · Palette generator →