#315AA4#315AA4

#315AA4 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 47.8% C 0.128 H 261.2°. Best body text is #FFFFFF at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#315AA4
RGB	rgb(49, 90, 164)
HSL	hsl(219, 54%, 42%)
HSV	hsv(219, 70%, 64%)
CMYK	cmyk(70.1%, 45.1%, 0%, 35.7%)
CIE-LAB	lab(38.98, 11.20, -44.22)
CIE-LCH	lch(38.98, 45.62, 284.22°)
OKLab	oklab(47.75% -0.0197 -0.1265)
OKLCH	oklch(47.75% 0.128 261.2)
XYZ	xyz(11.6212, 10.6444, 36.5569)
Luminance	0.1065 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315AA4 #A47B31

analogous

#3194A4 #315AA4 #4231A4

triadic

#315AA4 #A4315A #5AA431

tetradic

#315AA4 #A43194 #A47B31 #31A442

square

#315AA4 #A43194 #A47B31 #31A442

split-complementary

#315AA4 #A44231 #94A431

monochromatic

#152646 #234075 #315AA4 #4977C9 #799AD7

Accessibility & contrast

On white

6.71

#315AA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#315AA4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315AA4

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315AA4	#FFFFFF	#000000	##FFFFFF
##315AA4	1.00	6.71	3.13	6.71
#FFFFFF	6.71	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3561A7

Deuteranopia (green-blind)

#2057A2

Tritanopia (blue-blind)

#006B77

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #315aa4;
/* rgb */ color: rgb(49, 90, 164);
/* oklch */ color: oklch(47.8% 0.128 261.2);

Tailwind

colors: {
  custom: {
    50: '#7788bf',
    500: '#315aa4',
    950: '#000000',
  },
}

SCSS

$custom: #315aa4;
$custom-light: #7788bf;
$custom-dark: #000000;

JSON

{
  "hex": "#315aa4",
  "rgb": {
    "r": 49,
    "g": 90,
    "b": 164
  },
  "hsl": {
    "h": 218.609,
    "s": 53.991,
    "l": 41.765
  },
  "oklch": {
    "l": 0.47751,
    "c": 0.12801,
    "h": 261.2
  },
  "luminance": 0.10646
}

Semantic roles & 50–950 ramp

primary

#315AA4

secondary

#BFA472

accent

#A94ADD

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #315AA4

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

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