#315DA5#315DA5

#315DA5 is a mid, vivid blue. Relative luminance 0.112; OKLCH L 48.5% C 0.126 H 259.8°. Best body text is #FFFFFF at 6.48:1 contrast (WCAG AA passes).

Color values

HEX	#315DA5
RGB	rgb(49, 93, 165)
HSL	hsl(217, 54%, 42%)
HSV	hsv(217, 70%, 65%)
CMYK	cmyk(70.3%, 43.6%, 0%, 35.3%)
CIE-LAB	lab(39.91, 9.63, -43.32)
CIE-LCH	lch(39.91, 44.38, 282.54°)
OKLab	oklab(48.49% -0.0224 -0.1238)
OKLCH	oklch(48.49% 0.126 259.8)
XYZ	xyz(11.9701, 11.1970, 37.1204)
Luminance	0.1120 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315DA5 #A57931

analogous

#3197A5 #315DA5 #3F31A5

triadic

#315DA5 #A5315D #5DA531

tetradic

#315DA5 #A53197 #A57931 #31A53F

square

#315DA5 #A53197 #A57931 #31A53F

split-complementary

#315DA5 #A53F31 #97A531

monochromatic

#152847 #234276 #315DA5 #4A7AC9 #799DD7

Accessibility & contrast

On white

6.48

#315DA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#315DA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315DA5

6.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315DA5	#FFFFFF	#000000	##FFFFFF
##315DA5	1.00	6.48	3.24	6.48
#FFFFFF	6.48	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A64A8

Deuteranopia (green-blind)

#2659A4

Tritanopia (blue-blind)

#006E79

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #315da5;
/* rgb */ color: rgb(49, 93, 165);
/* oklch */ color: oklch(48.5% 0.126 259.8);

Tailwind

colors: {
  custom: {
    50: '#778ac0',
    500: '#315da5',
    950: '#000000',
  },
}

SCSS

$custom: #315da5;
$custom-light: #778ac0;
$custom-dark: #000000;

JSON

{
  "hex": "#315da5",
  "rgb": {
    "r": 49,
    "g": 93,
    "b": 165
  },
  "hsl": {
    "h": 217.241,
    "s": 54.206,
    "l": 41.961
  },
  "oklch": {
    "l": 0.48492,
    "c": 0.1258,
    "h": 259.8
  },
  "luminance": 0.11198
}

Semantic roles & 50–950 ramp

primary

#315DA5

secondary

#C0A272

accent

#A64ADE

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #315DA5

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

Preview Lab → · Contrast checker → · Palette generator →