#315CA5#315CA5

#315CA5 is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.3% C 0.127 H 260.3°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#315CA5
RGB	rgb(49, 92, 165)
HSL	hsl(218, 54%, 42%)
HSV	hsv(218, 70%, 65%)
CMYK	cmyk(70.3%, 44.2%, 0%, 35.3%)
CIE-LAB	lab(39.62, 10.28, -43.79)
CIE-LCH	lch(39.62, 44.98, 283.21°)
OKLab	oklab(48.27% -0.0214 -0.1252)
OKLCH	oklch(48.27% 0.127 260.3)
XYZ	xyz(11.8829, 11.0226, 37.0914)
Luminance	0.1102 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315CA5 #A57A31

analogous

#3196A5 #315CA5 #4031A5

triadic

#315CA5 #A5315C #5CA531

tetradic

#315CA5 #A53196 #A57A31 #31A540

square

#315CA5 #A53196 #A57A31 #31A540

split-complementary

#315CA5 #A54031 #96A531

monochromatic

#152747 #234276 #315CA5 #4A79C9 #799CD7

Accessibility & contrast

On white

6.55

#315CA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#315CA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315CA5

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315CA5	#FFFFFF	#000000	##FFFFFF
##315CA5	1.00	6.55	3.20	6.55
#FFFFFF	6.55	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3963A8

Deuteranopia (green-blind)

#2458A4

Tritanopia (blue-blind)

#006D78

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #315ca5;
/* rgb */ color: rgb(49, 92, 165);
/* oklch */ color: oklch(48.3% 0.127 260.3);

Tailwind

colors: {
  custom: {
    50: '#7789c0',
    500: '#315ca5',
    950: '#000000',
  },
}

SCSS

$custom: #315ca5;
$custom-light: #7789c0;
$custom-dark: #000000;

JSON

{
  "hex": "#315ca5",
  "rgb": {
    "r": 49,
    "g": 92,
    "b": 165
  },
  "hsl": {
    "h": 217.759,
    "s": 54.206,
    "l": 41.961
  },
  "oklch": {
    "l": 0.48267,
    "c": 0.127,
    "h": 260.3
  },
  "luminance": 0.11024
}

Semantic roles & 50–950 ramp

primary

#315CA5

secondary

#C0A372

accent

#A74ADE

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #315CA5

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

Preview Lab → · Contrast checker → · Palette generator →