#315EB7#315EB7

#315EB7 is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.0% C 0.150 H 262.2°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#315EB7
RGB	rgb(49, 94, 183)
HSL	hsl(220, 58%, 45%)
HSV	hsv(220, 73%, 72%)
CMYK	cmyk(73.2%, 48.6%, 0%, 28.2%)
CIE-LAB	lab(41.34, 15.74, -51.64)
CIE-LCH	lch(41.34, 53.99, 286.95°)
OKLab	oklab(49.96% -0.0202 -0.1482)
OKLCH	oklch(49.96% 0.15 262.2)
XYZ	xyz(13.8135, 12.0758, 46.3934)
Luminance	0.1208 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315EB7 #B78A31

analogous

#31A1B7 #315EB7 #4731B7

triadic

#315EB7 #B7315E #5EB731

tetradic

#315EB7 #B731A1 #B78A31 #31B747

square

#315EB7 #B731A1 #B78A31 #31B747

split-complementary

#315EB7 #B74731 #A1B731

monochromatic

#172C56 #244587 #315EB7 #547ED1 #84A2DE

Accessibility & contrast

On white

6.15

#315EB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#315EB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315EB7

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315EB7	#FFFFFF	#000000	##FFFFFF
##315EB7	1.00	6.15	3.42	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C68BA

Deuteranopia (green-blind)

#005CB5

Tritanopia (blue-blind)

#007382

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #315eb7;
/* rgb */ color: rgb(49, 94, 183);
/* oklch */ color: oklch(50.0% 0.150 262.2);

Tailwind

colors: {
  custom: {
    50: '#7b8bcd',
    500: '#315eb7',
    950: '#000000',
  },
}

SCSS

$custom: #315eb7;
$custom-light: #7b8bcd;
$custom-dark: #000000;

JSON

{
  "hex": "#315eb7",
  "rgb": {
    "r": 49,
    "g": 94,
    "b": 183
  },
  "hsl": {
    "h": 219.851,
    "s": 57.759,
    "l": 45.49
  },
  "oklch": {
    "l": 0.49956,
    "c": 0.14962,
    "h": 262.2
  },
  "luminance": 0.12077
}

Semantic roles & 50–950 ramp

primary

#315EB7

secondary

#C8AE7C

accent

#AD47E1

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #315EB7

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

Preview Lab → · Contrast checker → · Palette generator →