#315ED4#315ED4

#315ED4 is a mid, vivid blue. Relative luminance 0.134; OKLCH L 52.1% C 0.189 H 264.7°. Best body text is #FFFFFF at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#315ED4
RGB	rgb(49, 94, 212)
HSL	hsl(223, 65%, 51%)
HSV	hsv(223, 77%, 83%)
CMYK	cmyk(76.9%, 55.7%, 0%, 16.9%)
CIE-LAB	lab(43.37, 26.61, -65.13)
CIE-LCH	lch(43.37, 70.35, 292.22°)
OKLab	oklab(52.15% -0.0173 -0.1879)
OKLCH	oklch(52.15% 0.189 264.7)
XYZ	xyz(17.1488, 13.4099, 63.9592)
Luminance	0.1341 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315ED4 #D4A731

analogous

#31AFD4 #315ED4 #5531D4

triadic

#315ED4 #D4315E #5ED431

tetradic

#315ED4 #D431AF #D4A731 #31D455

square

#315ED4 #D431AF #D4A731 #31D455

split-complementary

#315ED4 #D45531 #AFD431

monochromatic

#183173 #2347A5 #315ED4 #6486DF #96ADE9

Accessibility & contrast

On white

5.70

#315ED4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#315ED4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315ED4

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315ED4	#FFFFFF	#000000	##FFFFFF
##315ED4	1.00	5.70	3.68	5.70
#FFFFFF	5.70	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ED8

Deuteranopia (green-blind)

#005FD2

Tritanopia (blue-blind)

#007B90

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #315ed4;
/* rgb */ color: rgb(49, 94, 212);
/* oklch */ color: oklch(52.1% 0.189 264.7);

Tailwind

colors: {
  custom: {
    50: '#818be2',
    500: '#315ed4',
    950: '#000000',
  },
}

SCSS

$custom: #315ed4;
$custom-light: #818be2;
$custom-dark: #000000;

JSON

{
  "hex": "#315ed4",
  "rgb": {
    "r": 49,
    "g": 94,
    "b": 212
  },
  "hsl": {
    "h": 223.436,
    "s": 65.462,
    "l": 51.176
  },
  "oklch": {
    "l": 0.5215,
    "c": 0.18871,
    "h": 264.7
  },
  "luminance": 0.13412
}

Semantic roles & 50–950 ramp

primary

#315ED4

secondary

#D4C18C

accent

#BA3FE8

background

#F8F8FE

surface

#F0F0FC

border

#CBCBD5

text

#0C0B15

muted

#7D7C84

Preview Lab

Preview with #315ED4

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

Preview Lab → · Contrast checker → · Palette generator →