#315CB8#315CB8

#315CB8 is a mid, vivid blue. Relative luminance 0.118; OKLCH L 49.6% C 0.153 H 263.1°. Best body text is #FFFFFF at 6.26:1 contrast (WCAG AA passes).

Color values

HEX	#315CB8
RGB	rgb(49, 92, 184)
HSL	hsl(221, 58%, 46%)
HSV	hsv(221, 73%, 72%)
CMYK	cmyk(73.4%, 50%, 0%, 27.8%)
CIE-LAB	lab(40.84, 17.42, -53.02)
CIE-LCH	lch(40.84, 55.81, 288.19°)
OKLab	oklab(49.6% -0.0184 -0.1524)
OKLCH	oklch(49.6% 0.153 263.1)
XYZ	xyz(13.7424, 11.7665, 46.8850)
Luminance	0.1177 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315CB8 #B88D31

analogous

#319FB8 #315CB8 #4931B8

triadic

#315CB8 #B8315C #5CB831

tetradic

#315CB8 #B8319F #B88D31 #31B849

square

#315CB8 #B8319F #B88D31 #31B849

split-complementary

#315CB8 #B84931 #9FB831

monochromatic

#172C57 #244488 #315CB8 #557CD2 #85A1DE

Accessibility & contrast

On white

6.26

#315CB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#315CB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315CB8

6.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315CB8	#FFFFFF	#000000	##FFFFFF
##315CB8	1.00	6.26	3.35	6.26
#FFFFFF	6.26	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2667BB

Deuteranopia (green-blind)

#005AB6

Tritanopia (blue-blind)

#007281

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #315cb8;
/* rgb */ color: rgb(49, 92, 184);
/* oklch */ color: oklch(49.6% 0.153 263.1);

Tailwind

colors: {
  custom: {
    50: '#7b89ce',
    500: '#315cb8',
    950: '#000000',
  },
}

SCSS

$custom: #315cb8;
$custom-light: #7b89ce;
$custom-dark: #000000;

JSON

{
  "hex": "#315cb8",
  "rgb": {
    "r": 49,
    "g": 92,
    "b": 184
  },
  "hsl": {
    "h": 220.889,
    "s": 57.94,
    "l": 45.686
  },
  "oklch": {
    "l": 0.496,
    "c": 0.15345,
    "h": 263.1
  },
  "luminance": 0.11768
}

Semantic roles & 50–950 ramp

primary

#315CB8

secondary

#C8B07D

accent

#B047E1

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #315CB8

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

Preview Lab → · Contrast checker → · Palette generator →