#315DB1#315DB1

#315DB1 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.3% C 0.143 H 261.8°. Best body text is #FFFFFF at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#315DB1
RGB	rgb(49, 93, 177)
HSL	hsl(219, 57%, 44%)
HSV	hsv(219, 72%, 69%)
CMYK	cmyk(72.3%, 47.5%, 0%, 30.6%)
CIE-LAB	lab(40.66, 14.13, -49.21)
CIE-LCH	lch(40.66, 51.20, 286.03°)
OKLab	oklab(49.31% -0.0202 -0.1411)
OKLCH	oklch(49.31% 0.143 261.8)
XYZ	xyz(13.1139, 11.6546, 43.1449)
Luminance	0.1166 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315DB1 #B18531

analogous

#319DB1 #315DB1 #4531B1

triadic

#315DB1 #B1315D #5DB131

tetradic

#315DB1 #B1319D #B18531 #31B145

square

#315DB1 #B1319D #B18531 #31B145

split-complementary

#315DB1 #B14531 #9DB131

monochromatic

#162B51 #244481 #315DB1 #517CCF #80A0DC

Accessibility & contrast

On white

6.30

#315DB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#315DB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315DB1

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315DB1	#FFFFFF	#000000	##FFFFFF
##315DB1	1.00	6.30	3.33	6.30
#FFFFFF	6.30	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3066B4

Deuteranopia (green-blind)

#105AAF

Tritanopia (blue-blind)

#00717E

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #315db1;
/* rgb */ color: rgb(49, 93, 177);
/* oklch */ color: oklch(49.3% 0.143 261.8);

Tailwind

colors: {
  custom: {
    50: '#798ac9',
    500: '#315db1',
    950: '#000000',
  },
}

SCSS

$custom: #315db1;
$custom-light: #798ac9;
$custom-dark: #000000;

JSON

{
  "hex": "#315db1",
  "rgb": {
    "r": 49,
    "g": 93,
    "b": 177
  },
  "hsl": {
    "h": 219.375,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.49313,
    "c": 0.14254,
    "h": 261.8
  },
  "luminance": 0.11656
}

Semantic roles & 50–950 ramp

primary

#315DB1

secondary

#C5AB79

accent

#AC48E0

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #315DB1

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

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