#315DBB#315DBB

#315DBB is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.0% C 0.156 H 263.1°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#315DBB
RGB	rgb(49, 93, 187)
HSL	hsl(221, 58%, 46%)
HSV	hsv(221, 74%, 73%)
CMYK	cmyk(73.8%, 50.3%, 0%, 26.7%)
CIE-LAB	lab(41.32, 17.90, -54.00)
CIE-LCH	lch(41.32, 56.89, 288.34°)
OKLab	oklab(50.03% -0.0188 -0.1552)
OKLCH	oklch(50.03% 0.156 263.1)
XYZ	xyz(14.1474, 12.0680, 48.5878)
Luminance	0.1207 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315DBB #BB8F31

analogous

#31A2BB #315DBB #4A31BB

triadic

#315DBB #BB315D #5DBB31

tetradic

#315DBB #BB31A2 #BB8F31 #31BB4A

square

#315DBB #BB31A2 #BB8F31 #31BB4A

split-complementary

#315DBB #BB4A31 #A2BB31

monochromatic

#182D5A #24458B #315DBB #567ED3 #87A3E0

Accessibility & contrast

On white

6.15

#315DBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#315DBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315DBB

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

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

#2568BE

Deuteranopia (green-blind)

#005BB9

Tritanopia (blue-blind)

#007383

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #315dbb;
/* rgb */ color: rgb(49, 93, 187);
/* oklch */ color: oklch(50.0% 0.156 263.1);

Tailwind

colors: {
  custom: {
    50: '#7c8ad0',
    500: '#315dbb',
    950: '#000000',
  },
}

SCSS

$custom: #315dbb;
$custom-light: #7c8ad0;
$custom-dark: #000000;

JSON

{
  "hex": "#315dbb",
  "rgb": {
    "r": 49,
    "g": 93,
    "b": 187
  },
  "hsl": {
    "h": 220.87,
    "s": 58.475,
    "l": 46.275
  },
  "oklch": {
    "l": 0.50032,
    "c": 0.15634,
    "h": 263.1
  },
  "luminance": 0.1207
}

Semantic roles & 50–950 ramp

primary

#315DBB

secondary

#C9B17F

accent

#B046E2

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #315DBB

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

Preview Lab → · Contrast checker → · Palette generator →