#315AA5#315AA5

#315AA5 is a mid, vivid blue. Relative luminance 0.107; OKLCH L 47.8% C 0.129 H 261.3°. Best body text is #FFFFFF at 6.70:1 contrast (WCAG AA passes).

Color values

HEX	#315AA5
RGB	rgb(49, 90, 165)
HSL	hsl(219, 54%, 42%)
HSV	hsv(219, 70%, 65%)
CMYK	cmyk(70.3%, 45.5%, 0%, 35.3%)
CIE-LAB	lab(39.04, 11.58, -44.72)
CIE-LCH	lch(39.04, 46.19, 284.52°)
OKLab	oklab(47.82% -0.0195 -0.1279)
OKLCH	oklch(47.82% 0.129 261.3)
XYZ	xyz(11.7119, 10.6807, 37.0344)
Luminance	0.1068 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315AA5 #A57C31

analogous

#3194A5 #315AA5 #4231A5

triadic

#315AA5 #A5315A #5AA531

tetradic

#315AA5 #A53194 #A57C31 #31A542

square

#315AA5 #A53194 #A57C31 #31A542

split-complementary

#315AA5 #A54231 #94A531

monochromatic

#152747 #234076 #315AA5 #4A77C9 #799AD7

Accessibility & contrast

On white

6.70

#315AA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#315AA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315AA5

6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315AA5	#FFFFFF	#000000	##FFFFFF
##315AA5	1.00	6.70	3.14	6.70
#FFFFFF	6.70	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3562A8

Deuteranopia (green-blind)

#1F57A3

Tritanopia (blue-blind)

#006B77

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #315aa5;
/* rgb */ color: rgb(49, 90, 165);
/* oklch */ color: oklch(47.8% 0.129 261.3);

Tailwind

colors: {
  custom: {
    50: '#7788c0',
    500: '#315aa5',
    950: '#000000',
  },
}

SCSS

$custom: #315aa5;
$custom-light: #7788c0;
$custom-dark: #000000;

JSON

{
  "hex": "#315aa5",
  "rgb": {
    "r": 49,
    "g": 90,
    "b": 165
  },
  "hsl": {
    "h": 218.793,
    "s": 54.206,
    "l": 41.961
  },
  "oklch": {
    "l": 0.47819,
    "c": 0.12942,
    "h": 261.3
  },
  "luminance": 0.10682
}

Semantic roles & 50–950 ramp

primary

#315AA5

secondary

#C0A472

accent

#A94ADE

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #315AA5

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

Preview Lab → · Contrast checker → · Palette generator →