#315BD4#315BD4

#315BD4 is a mid, vivid blue. Relative luminance 0.129; OKLCH L 51.6% C 0.192 H 265.5°. Best body text is #FFFFFF at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#315BD4
RGB	rgb(49, 91, 212)
HSL	hsl(225, 65%, 51%)
HSV	hsv(225, 77%, 83%)
CMYK	cmyk(76.9%, 57.1%, 0%, 16.9%)
CIE-LAB	lab(42.59, 28.54, -66.40)
CIE-LCH	lch(42.59, 72.27, 293.26°)
OKLab	oklab(51.56% -0.0152 -0.1917)
OKLCH	oklch(51.56% 0.192 265.5)
XYZ	xyz(16.8872, 12.8867, 63.8720)
Luminance	0.1289 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315BD4 #D4AA31

analogous

#31ACD4 #315BD4 #5831D4

triadic

#315BD4 #D4315B #5BD431

tetradic

#315BD4 #D431AC #D4AA31 #31D458

square

#315BD4 #D431AC #D4AA31 #31D458

split-complementary

#315BD4 #D45831 #ACD431

monochromatic

#182F73 #2344A5 #315BD4 #6483DF #96ACE9

Accessibility & contrast

On white

5.87

#315BD4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#315BD4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315BD4

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315BD4	#FFFFFF	#000000	##FFFFFF
##315BD4	1.00	5.87	3.58	5.87
#FFFFFF	5.87	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CD8

Deuteranopia (green-blind)

#005DD2

Tritanopia (blue-blind)

#00798E

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #315bd4;
/* rgb */ color: rgb(49, 91, 212);
/* oklch */ color: oklch(51.6% 0.192 265.5);

Tailwind

colors: {
  custom: {
    50: '#8188e2',
    500: '#315bd4',
    950: '#000000',
  },
}

SCSS

$custom: #315bd4;
$custom-light: #8188e2;
$custom-dark: #000000;

JSON

{
  "hex": "#315bd4",
  "rgb": {
    "r": 49,
    "g": 91,
    "b": 212
  },
  "hsl": {
    "h": 224.54,
    "s": 65.462,
    "l": 51.176
  },
  "oklch": {
    "l": 0.51562,
    "c": 0.19231,
    "h": 265.5
  },
  "luminance": 0.12889
}

Semantic roles & 50–950 ramp

primary

#315BD4

secondary

#D4C28C

accent

#BD3FE8

background

#F8F8FE

surface

#F0EFFC

border

#CBCAD5

text

#0C0B15

muted

#7D7C84

Preview Lab

Preview with #315BD4

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

Preview Lab → · Contrast checker → · Palette generator →