#315BDB#315BDB

#315BDB is a mid, highly saturated blue. Relative luminance 0.133; OKLCH L 52.1% C 0.201 H 265.7°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#315BDB
RGB	rgb(49, 91, 219)
HSL	hsl(225, 70%, 53%)
HSV	hsv(225, 78%, 86%)
CMYK	cmyk(77.6%, 58.4%, 0%, 14.1%)
CIE-LAB	lab(43.13, 31.12, -69.52)
CIE-LCH	lch(43.13, 76.17, 294.12°)
OKLab	oklab(52.14% -0.015 -0.2009)
OKLCH	oklch(52.14% 0.201 265.7)
XYZ	xyz(17.7894, 13.2476, 68.6236)
Luminance	0.1325 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315BDB #DBB131

analogous

#31B0DB #315BDB #5C31DB

triadic

#315BDB #DB315B #5BDB31

tetradic

#315BDB #DB31B0 #DBB131 #31DB5C

square

#315BDB #DB31B0 #DBB131 #31DB5C

split-complementary

#315BDB #DB5C31 #B0DB31

monochromatic

#162F7C #1F43B0 #315BDB #6584E4 #99AEED

Accessibility & contrast

On white

5.75

#315BDB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#315BDB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315BDB

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315BDB	#FFFFFF	#000000	##FFFFFF
##315BDB	1.00	5.75	3.65	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006EDF

Deuteranopia (green-blind)

#005ED9

Tritanopia (blue-blind)

#007B92

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #315bdb;
/* rgb */ color: rgb(49, 91, 219);
/* oklch */ color: oklch(52.1% 0.201 265.7);

Tailwind

colors: {
  custom: {
    50: '#8388e7',
    500: '#315bdb',
    950: '#000000',
  },
}

SCSS

$custom: #315bdb;
$custom-light: #8388e7;
$custom-dark: #000000;

JSON

{
  "hex": "#315bdb",
  "rgb": {
    "r": 49,
    "g": 91,
    "b": 219
  },
  "hsl": {
    "h": 225.176,
    "s": 70.248,
    "l": 52.549
  },
  "oklch": {
    "l": 0.52137,
    "c": 0.20143,
    "h": 265.7
  },
  "luminance": 0.1325
}

Semantic roles & 50–950 ramp

primary

#315BDB

secondary

#D9C78F

accent

#C13BED

background

#F8F8FE

surface

#F0EFFD

border

#CBCAD5

text

#0D0B16

muted

#7D7C84

Preview Lab

Preview with #315BDB

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

Preview Lab → · Contrast checker → · Palette generator →