#315CBF#315CBF

#315CBF is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.1% C 0.163 H 263.8°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#315CBF
RGB	rgb(49, 92, 191)
HSL	hsl(222, 59%, 47%)
HSV	hsv(222, 74%, 75%)
CMYK	cmyk(74.3%, 51.8%, 0%, 25.1%)
CIE-LAB	lab(41.32, 20.05, -56.33)
CIE-LCH	lch(41.32, 59.79, 289.59°)
OKLab	oklab(50.12% -0.0175 -0.1621)
OKLCH	oklch(50.12% 0.163 263.8)
XYZ	xyz(14.4944, 12.0673, 50.8454)
Luminance	0.1207 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315CBF #BF9431

analogous

#31A3BF #315CBF #4D31BF

triadic

#315CBF #BF315C #5CBF31

tetradic

#315CBF #BF31A3 #BF9431 #31BF4D

square

#315CBF #BF31A3 #BF9431 #31BF4D

split-complementary

#315CBF #BF4D31 #A3BF31

monochromatic

#182D5E #25458E #315CBF #597ED4 #8AA4E1

Accessibility & contrast

On white

6.15

#315CBF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#315CBF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315CBF

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315CBF	#FFFFFF	#000000	##FFFFFF
##315CBF	1.00	6.15	3.41	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A68C3

Deuteranopia (green-blind)

#005BBD

Tritanopia (blue-blind)

#007484

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #315cbf;
/* rgb */ color: rgb(49, 92, 191);
/* oklch */ color: oklch(50.1% 0.163 263.8);

Tailwind

colors: {
  custom: {
    50: '#7d89d3',
    500: '#315cbf',
    950: '#000000',
  },
}

SCSS

$custom: #315cbf;
$custom-light: #7d89d3;
$custom-dark: #000000;

JSON

{
  "hex": "#315cbf",
  "rgb": {
    "r": 49,
    "g": 92,
    "b": 191
  },
  "hsl": {
    "h": 221.831,
    "s": 59.167,
    "l": 47.059
  },
  "oklch": {
    "l": 0.50119,
    "c": 0.16304,
    "h": 263.8
  },
  "luminance": 0.12069
}

Semantic roles & 50–950 ramp

primary

#315CBF

secondary

#CBB481

accent

#B345E2

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #315CBF

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

Preview Lab → · Contrast checker → · Palette generator →