#315FA8#315FA8

#315FA8 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.1% C 0.128 H 259.3°. Best body text is #FFFFFF at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#315FA8
RGB	rgb(49, 95, 168)
HSL	hsl(217, 55%, 43%)
HSV	hsv(217, 71%, 66%)
CMYK	cmyk(70.8%, 43.5%, 0%, 34.1%)
CIE-LAB	lab(40.68, 9.46, -43.87)
CIE-LCH	lch(40.68, 44.88, 282.17°)
OKLab	oklab(49.14% -0.0237 -0.1254)
OKLCH	oklch(49.14% 0.128 259.3)
XYZ	xyz(12.4242, 11.6632, 38.6347)
Luminance	0.1167 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315FA8 #A87A31

analogous

#319AA8 #315FA8 #3F31A8

triadic

#315FA8 #A8315F #5FA831

tetradic

#315FA8 #A8319A #A87A31 #31A83F

square

#315FA8 #A8319A #A87A31 #31A83F

split-complementary

#315FA8 #A83F31 #9AA831

monochromatic

#152949 #234479 #315FA8 #4C7DCB #7B9FD8

Accessibility & contrast

On white

6.30

#315FA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#315FA8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315FA8

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315FA8	#FFFFFF	#000000	##FFFFFF
##315FA8	1.00	6.30	3.33	6.30
#FFFFFF	6.30	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C66AB

Deuteranopia (green-blind)

#275BA7

Tritanopia (blue-blind)

#00707B

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #315fa8;
/* rgb */ color: rgb(49, 95, 168);
/* oklch */ color: oklch(49.1% 0.128 259.3);

Tailwind

colors: {
  custom: {
    50: '#788bc2',
    500: '#315fa8',
    950: '#000000',
  },
}

SCSS

$custom: #315fa8;
$custom-light: #788bc2;
$custom-dark: #000000;

JSON

{
  "hex": "#315fa8",
  "rgb": {
    "r": 49,
    "g": 95,
    "b": 168
  },
  "hsl": {
    "h": 216.807,
    "s": 54.839,
    "l": 42.549
  },
  "oklch": {
    "l": 0.49143,
    "c": 0.12761,
    "h": 259.3
  },
  "luminance": 0.11665
}

Semantic roles & 50–950 ramp

primary

#315FA8

secondary

#C1A374

accent

#A54ADE

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C12

muted

#7C7D81

Preview Lab

Preview with #315FA8

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

Preview Lab → · Contrast checker → · Palette generator →