#315BA5#315BA5

#315BA5 is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.0% C 0.128 H 260.8°. Best body text is #FFFFFF at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#315BA5
RGB	rgb(49, 91, 165)
HSL	hsl(218, 54%, 42%)
HSV	hsv(218, 70%, 65%)
CMYK	cmyk(70.3%, 44.8%, 0%, 35.3%)
CIE-LAB	lab(39.33, 10.93, -44.25)
CIE-LCH	lch(39.33, 45.58, 283.87°)
OKLab	oklab(48.04% -0.0204 -0.1266)
OKLCH	oklch(48.04% 0.128 260.8)
XYZ	xyz(11.7968, 10.8505, 37.0627)
Luminance	0.1085 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315BA5 #A57B31

analogous

#3195A5 #315BA5 #4131A5

triadic

#315BA5 #A5315B #5BA531

tetradic

#315BA5 #A53195 #A57B31 #31A541

square

#315BA5 #A53195 #A57B31 #31A541

split-complementary

#315BA5 #A54131 #95A531

monochromatic

#152747 #234176 #315BA5 #4A78C9 #799BD7

Accessibility & contrast

On white

6.62

#315BA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#315BA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315BA5

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315BA5	#FFFFFF	#000000	##FFFFFF
##315BA5	1.00	6.62	3.17	6.62
#FFFFFF	6.62	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3762A8

Deuteranopia (green-blind)

#2158A3

Tritanopia (blue-blind)

#006C78

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #315ba5;
/* rgb */ color: rgb(49, 91, 165);
/* oklch */ color: oklch(48.0% 0.128 260.8);

Tailwind

colors: {
  custom: {
    50: '#7788c0',
    500: '#315ba5',
    950: '#000000',
  },
}

SCSS

$custom: #315ba5;
$custom-light: #7788c0;
$custom-dark: #000000;

JSON

{
  "hex": "#315ba5",
  "rgb": {
    "r": 49,
    "g": 91,
    "b": 165
  },
  "hsl": {
    "h": 218.276,
    "s": 54.206,
    "l": 41.961
  },
  "oklch": {
    "l": 0.48043,
    "c": 0.1282,
    "h": 260.8
  },
  "luminance": 0.10852
}

Semantic roles & 50–950 ramp

primary

#315BA5

secondary

#C0A472

accent

#A84ADE

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #315BA5

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

Preview Lab → · Contrast checker → · Palette generator →