#315AA6#315AA6

#315AA6 is a mid, vivid blue. Relative luminance 0.107; OKLCH L 47.9% C 0.131 H 261.5°. Best body text is #FFFFFF at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#315AA6
RGB	rgb(49, 90, 166)
HSL	hsl(219, 54%, 42%)
HSV	hsv(219, 70%, 65%)
CMYK	cmyk(70.5%, 45.8%, 0%, 34.9%)
CIE-LAB	lab(39.10, 11.95, -45.21)
CIE-LCH	lch(39.10, 46.76, 284.81°)
OKLab	oklab(47.89% -0.0193 -0.1294)
OKLCH	oklch(47.89% 0.131 261.5)
XYZ	xyz(11.8033, 10.7173, 37.5156)
Luminance	0.1072 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315AA6 #A67D31

analogous

#3195A6 #315AA6 #4231A6

triadic

#315AA6 #A6315A #5AA631

tetradic

#315AA6 #A63195 #A67D31 #31A642

square

#315AA6 #A63195 #A67D31 #31A642

split-complementary

#315AA6 #A64231 #95A631

monochromatic

#152747 #234077 #315AA6 #4A77CA #7A9BD8

Accessibility & contrast

On white

6.68

#315AA6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#315AA6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315AA6

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315AA6	#FFFFFF	#000000	##FFFFFF
##315AA6	1.00	6.68	3.14	6.68
#FFFFFF	6.68	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3462A9

Deuteranopia (green-blind)

#1D57A4

Tritanopia (blue-blind)

#006C78

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #315aa6;
/* rgb */ color: rgb(49, 90, 166);
/* oklch */ color: oklch(47.9% 0.131 261.5);

Tailwind

colors: {
  custom: {
    50: '#7788c1',
    500: '#315aa6',
    950: '#000000',
  },
}

SCSS

$custom: #315aa6;
$custom-light: #7788c1;
$custom-dark: #000000;

JSON

{
  "hex": "#315aa6",
  "rgb": {
    "r": 49,
    "g": 90,
    "b": 166
  },
  "hsl": {
    "h": 218.974,
    "s": 54.419,
    "l": 42.157
  },
  "oklch": {
    "l": 0.47888,
    "c": 0.13083,
    "h": 261.5
  },
  "luminance": 0.10718
}

Semantic roles & 50–950 ramp

primary

#315AA6

secondary

#C0A573

accent

#AA4ADE

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #315AA6

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

Preview Lab → · Contrast checker → · Palette generator →