#315FA3#315FA3

#315FA3 is a mid, vivid blue. Relative luminance 0.115; OKLCH L 48.8% C 0.121 H 258.2°. Best body text is #FFFFFF at 6.37:1 contrast (WCAG AA passes).

Color values

HEX	#315FA3
RGB	rgb(49, 95, 163)
HSL	hsl(216, 54%, 42%)
HSV	hsv(216, 70%, 64%)
CMYK	cmyk(69.9%, 41.7%, 0%, 36.1%)
CIE-LAB	lab(40.38, 7.59, -41.38)
CIE-LCH	lch(40.38, 42.08, 280.40°)
OKLab	oklab(48.82% -0.0247 -0.1181)
OKLCH	oklch(48.82% 0.121 258.2)
XYZ	xyz(11.9673, 11.4805, 36.2285)
Luminance	0.1148 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315FA3 #A37531

analogous

#3198A3 #315FA3 #3C31A3

triadic

#315FA3 #A3315F #5FA331

tetradic

#315FA3 #A33198 #A37531 #31A33C

square

#315FA3 #A33198 #A37531 #31A33C

split-complementary

#315FA3 #A33C31 #98A331

monochromatic

#152845 #234474 #315FA3 #497CC8 #789ED6

Accessibility & contrast

On white

6.37

#315FA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#315FA3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315FA3

6.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315FA3	#FFFFFF	#000000	##FFFFFF
##315FA3	1.00	6.37	3.30	6.37
#FFFFFF	6.37	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F65A6

Deuteranopia (green-blind)

#2D5AA2

Tritanopia (blue-blind)

#006F79

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #315fa3;
/* rgb */ color: rgb(49, 95, 163);
/* oklch */ color: oklch(48.8% 0.121 258.2);

Tailwind

colors: {
  custom: {
    50: '#778bbf',
    500: '#315fa3',
    950: '#000000',
  },
}

SCSS

$custom: #315fa3;
$custom-light: #778bbf;
$custom-dark: #000000;

JSON

{
  "hex": "#315fa3",
  "rgb": {
    "r": 49,
    "g": 95,
    "b": 163
  },
  "hsl": {
    "h": 215.789,
    "s": 53.774,
    "l": 41.569
  },
  "oklch": {
    "l": 0.48816,
    "c": 0.12064,
    "h": 258.2
  },
  "luminance": 0.11482
}

Semantic roles & 50–950 ramp

primary

#315FA3

secondary

#BF9F71

accent

#A24BDD

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#0A0C12

muted

#7C7D81

Preview Lab

Preview with #315FA3

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

Preview Lab → · Contrast checker → · Palette generator →