#315BB7#315BB7

#315BB7 is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.3% C 0.153 H 263.4°. Best body text is #FFFFFF at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#315BB7
RGB	rgb(49, 91, 183)
HSL	hsl(221, 58%, 45%)
HSV	hsv(221, 73%, 72%)
CMYK	cmyk(73.2%, 50.3%, 0%, 28.2%)
CIE-LAB	lab(40.50, 17.69, -53.00)
CIE-LCH	lch(40.50, 55.87, 288.46°)
OKLab	oklab(49.31% -0.0176 -0.1523)
OKLCH	oklch(49.31% 0.153 263.4)
XYZ	xyz(13.5519, 11.5526, 46.3062)
Luminance	0.1155 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315BB7 #B78D31

analogous

#319EB7 #315BB7 #4A31B7

triadic

#315BB7 #B7315B #5BB731

tetradic

#315BB7 #B7319E #B78D31 #31B74A

square

#315BB7 #B7319E #B78D31 #31B74A

split-complementary

#315BB7 #B74A31 #9EB731

monochromatic

#172B56 #244387 #315BB7 #547BD1 #84A0DE

Accessibility & contrast

On white

6.34

#315BB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#315BB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315BB7

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315BB7	#FFFFFF	#000000	##FFFFFF
##315BB7	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)

#2466BA

Deuteranopia (green-blind)

#005AB5

Tritanopia (blue-blind)

#007180

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #315bb7;
/* rgb */ color: rgb(49, 91, 183);
/* oklch */ color: oklch(49.3% 0.153 263.4);

Tailwind

colors: {
  custom: {
    50: '#7b88cd',
    500: '#315bb7',
    950: '#000000',
  },
}

SCSS

$custom: #315bb7;
$custom-light: #7b88cd;
$custom-dark: #000000;

JSON

{
  "hex": "#315bb7",
  "rgb": {
    "r": 49,
    "g": 91,
    "b": 183
  },
  "hsl": {
    "h": 221.194,
    "s": 57.759,
    "l": 45.49
  },
  "oklch": {
    "l": 0.49314,
    "c": 0.15331,
    "h": 263.4
  },
  "luminance": 0.11554
}

Semantic roles & 50–950 ramp

primary

#315BB7

secondary

#C8B07C

accent

#B147E1

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #315BB7

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

Preview Lab → · Contrast checker → · Palette generator →