#315FA5#315FA5

#315FA5 is a mid, vivid blue. Relative luminance 0.116; OKLCH L 48.9% C 0.123 H 258.6°. Best body text is #FFFFFF at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#315FA5
RGB	rgb(49, 95, 165)
HSL	hsl(216, 54%, 42%)
HSV	hsv(216, 70%, 65%)
CMYK	cmyk(70.3%, 42.4%, 0%, 35.3%)
CIE-LAB	lab(40.50, 8.34, -42.38)
CIE-LCH	lch(40.50, 43.20, 281.13°)
OKLab	oklab(48.95% -0.0243 -0.121)
OKLCH	oklch(48.95% 0.123 258.6)
XYZ	xyz(12.1479, 11.5527, 37.1797)
Luminance	0.1155 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315FA5 #A57731

analogous

#3199A5 #315FA5 #3D31A5

triadic

#315FA5 #A5315F #5FA531

tetradic

#315FA5 #A53199 #A57731 #31A53D

square

#315FA5 #A53199 #A57731 #31A53D

split-complementary

#315FA5 #A53D31 #99A531

monochromatic

#152947 #234476 #315FA5 #4A7CC9 #799ED7

Accessibility & contrast

On white

6.34

#315FA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#315FA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315FA5

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315FA5	#FFFFFF	#000000	##FFFFFF
##315FA5	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)

#3E65A8

Deuteranopia (green-blind)

#2B5AA4

Tritanopia (blue-blind)

#006F7A

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #315fa5;
/* rgb */ color: rgb(49, 95, 165);
/* oklch */ color: oklch(48.9% 0.123 258.6);

Tailwind

colors: {
  custom: {
    50: '#778bc0',
    500: '#315fa5',
    950: '#000000',
  },
}

SCSS

$custom: #315fa5;
$custom-light: #778bc0;
$custom-dark: #000000;

JSON

{
  "hex": "#315fa5",
  "rgb": {
    "r": 49,
    "g": 95,
    "b": 165
  },
  "hsl": {
    "h": 216.207,
    "s": 54.206,
    "l": 41.961
  },
  "oklch": {
    "l": 0.48946,
    "c": 0.12343,
    "h": 258.6
  },
  "luminance": 0.11554
}

Semantic roles & 50–950 ramp

primary

#315FA5

secondary

#C0A172

accent

#A34ADE

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#0A0C12

muted

#7C7D81

Preview Lab

Preview with #315FA5

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

Preview Lab → · Contrast checker → · Palette generator →