#315FA9#315FA9

#315FA9 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.2% C 0.129 H 259.5°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#315FA9
RGB	rgb(49, 95, 169)
HSL	hsl(217, 55%, 43%)
HSV	hsv(217, 71%, 66%)
CMYK	cmyk(71%, 43.8%, 0%, 33.7%)
CIE-LAB	lab(40.74, 9.84, -44.37)
CIE-LCH	lch(40.74, 45.45, 282.50°)
OKLab	oklab(49.21% -0.0235 -0.1268)
OKLCH	oklch(49.21% 0.129 259.5)
XYZ	xyz(12.5177, 11.7006, 39.1272)
Luminance	0.1170 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315FA9 #A97B31

analogous

#319BA9 #315FA9 #3F31A9

triadic

#315FA9 #A9315F #5FA931

tetradic

#315FA9 #A9319B #A97B31 #31A93F

square

#315FA9 #A9319B #A97B31 #31A93F

split-complementary

#315FA9 #A93F31 #9BA931

monochromatic

#152A4A #23447A #315FA9 #4C7DCB #7C9FD9

Accessibility & contrast

On white

6.29

#315FA9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#315FA9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315FA9

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315FA9	#FFFFFF	#000000	##FFFFFF
##315FA9	1.00	6.29	3.34	6.29
#FFFFFF	6.29	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B66AC

Deuteranopia (green-blind)

#265BA7

Tritanopia (blue-blind)

#00707C

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #315fa9;
/* rgb */ color: rgb(49, 95, 169);
/* oklch */ color: oklch(49.2% 0.129 259.5);

Tailwind

colors: {
  custom: {
    50: '#788bc3',
    500: '#315fa9',
    950: '#000000',
  },
}

SCSS

$custom: #315fa9;
$custom-light: #788bc3;
$custom-dark: #000000;

JSON

{
  "hex": "#315fa9",
  "rgb": {
    "r": 49,
    "g": 95,
    "b": 169
  },
  "hsl": {
    "h": 217,
    "s": 55.046,
    "l": 42.745
  },
  "oklch": {
    "l": 0.49209,
    "c": 0.129,
    "h": 259.5
  },
  "luminance": 0.11702
}

Semantic roles & 50–950 ramp

primary

#315FA9

secondary

#C1A474

accent

#A549DE

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C12

muted

#7C7D81

Preview Lab

Preview with #315FA9

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

Preview Lab → · Contrast checker → · Palette generator →