#315FA4#315FA4

#315FA4 is a mid, vivid blue. Relative luminance 0.115; OKLCH L 48.9% C 0.122 H 258.4°. Best body text is #FFFFFF at 6.36:1 contrast (WCAG AA passes).

Color values

HEX	#315FA4
RGB	rgb(49, 95, 164)
HSL	hsl(216, 54%, 42%)
HSV	hsv(216, 70%, 64%)
CMYK	cmyk(70.1%, 42.1%, 0%, 35.7%)
CIE-LAB	lab(40.44, 7.97, -41.88)
CIE-LCH	lch(40.44, 42.64, 280.77°)
OKLab	oklab(48.88% -0.0245 -0.1195)
OKLCH	oklch(48.88% 0.122 258.4)
XYZ	xyz(12.0573, 11.5165, 36.7022)
Luminance	0.1152 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315FA4 #A47631

analogous

#3199A4 #315FA4 #3D31A4

triadic

#315FA4 #A4315F #5FA431

tetradic

#315FA4 #A43199 #A47631 #31A43D

square

#315FA4 #A43199 #A47631 #31A43D

split-complementary

#315FA4 #A43D31 #99A431

monochromatic

#152846 #234475 #315FA4 #497CC9 #799ED7

Accessibility & contrast

On white

6.36

#315FA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#315FA4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315FA4

6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315FA4	#FFFFFF	#000000	##FFFFFF
##315FA4	1.00	6.36	3.30	6.36
#FFFFFF	6.36	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F65A7

Deuteranopia (green-blind)

#2C5AA3

Tritanopia (blue-blind)

#006F79

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #315fa4;
/* rgb */ color: rgb(49, 95, 164);
/* oklch */ color: oklch(48.9% 0.122 258.4);

Tailwind

colors: {
  custom: {
    50: '#778bbf',
    500: '#315fa4',
    950: '#000000',
  },
}

SCSS

$custom: #315fa4;
$custom-light: #778bbf;
$custom-dark: #000000;

JSON

{
  "hex": "#315fa4",
  "rgb": {
    "r": 49,
    "g": 95,
    "b": 164
  },
  "hsl": {
    "h": 216,
    "s": 53.991,
    "l": 41.765
  },
  "oklch": {
    "l": 0.48881,
    "c": 0.12203,
    "h": 258.4
  },
  "luminance": 0.11518
}

Semantic roles & 50–950 ramp

primary

#315FA4

secondary

#BFA072

accent

#A34ADD

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#0A0C12

muted

#7C7D81

Preview Lab

Preview with #315FA4

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

Preview Lab → · Contrast checker → · Palette generator →