#315DC9#315DC9

#315DC9 is a mid, vivid blue. Relative luminance 0.127; OKLCH L 51.1% C 0.175 H 264.3°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#315DC9
RGB	rgb(49, 93, 201)
HSL	hsl(223, 61%, 49%)
HSV	hsv(223, 76%, 79%)
CMYK	cmyk(75.6%, 53.7%, 0%, 21.2%)
CIE-LAB	lab(42.30, 23.15, -60.54)
CIE-LCH	lch(42.30, 64.82, 290.93°)
OKLab	oklab(51.09% -0.0174 -0.1745)
OKLCH	oklch(51.09% 0.175 264.3)
XYZ	xyz(15.7198, 12.6970, 56.8693)
Luminance	0.1270 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315DC9 #C99D31

analogous

#31A9C9 #315DC9 #5131C9

triadic

#315DC9 #C9315D #5DC931

tetradic

#315DC9 #C931A9 #C99D31 #31C951

square

#315DC9 #C931A9 #C99D31 #31C951

split-complementary

#315DC9 #C95131 #A9C931

monochromatic

#192F67 #254698 #315DC9 #5F82D8 #90A9E4

Accessibility & contrast

On white

5.93

#315DC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#315DC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315DC9

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315DC9	#FFFFFF	#000000	##FFFFFF
##315DC9	1.00	5.93	3.54	5.93
#FFFFFF	5.93	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#016BCD

Deuteranopia (green-blind)

#005DC7

Tritanopia (blue-blind)

#00778A

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #315dc9;
/* rgb */ color: rgb(49, 93, 201);
/* oklch */ color: oklch(51.1% 0.175 264.3);

Tailwind

colors: {
  custom: {
    50: '#7f8ada',
    500: '#315dc9',
    950: '#000000',
  },
}

SCSS

$custom: #315dc9;
$custom-light: #7f8ada;
$custom-dark: #000000;

JSON

{
  "hex": "#315dc9",
  "rgb": {
    "r": 49,
    "g": 93,
    "b": 201
  },
  "hsl": {
    "h": 222.632,
    "s": 60.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.51087,
    "c": 0.17532,
    "h": 264.3
  },
  "luminance": 0.12699
}

Semantic roles & 50–950 ramp

primary

#315DC9

secondary

#CFBA87

accent

#B644E4

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #315DC9

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

Preview Lab → · Contrast checker → · Palette generator →