#315CA3#315CA3

#315CA3 is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.1% C 0.124 H 259.9°. Best body text is #FFFFFF at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#315CA3
RGB	rgb(49, 92, 163)
HSL	hsl(217, 54%, 42%)
HSV	hsv(217, 70%, 64%)
CMYK	cmyk(69.9%, 43.6%, 0%, 36.1%)
CIE-LAB	lab(39.50, 9.53, -42.79)
CIE-LCH	lch(39.50, 43.84, 282.56°)
OKLab	oklab(48.13% -0.0218 -0.1222)
OKLCH	oklch(48.13% 0.124 259.9)
XYZ	xyz(11.7023, 10.9504, 36.1401)
Luminance	0.1095 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315CA3 #A37831

analogous

#3195A3 #315CA3 #3F31A3

triadic

#315CA3 #A3315C #5CA331

tetradic

#315CA3 #A33195 #A37831 #31A33F

square

#315CA3 #A33195 #A37831 #31A33F

split-complementary

#315CA3 #A33F31 #95A331

monochromatic

#152745 #234174 #315CA3 #4979C8 #789CD6

Accessibility & contrast

On white

6.58

#315CA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#315CA3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315CA3

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315CA3	#FFFFFF	#000000	##FFFFFF
##315CA3	1.00	6.58	3.19	6.58
#FFFFFF	6.58	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A63A6

Deuteranopia (green-blind)

#2758A2

Tritanopia (blue-blind)

#006C77

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #315ca3;
/* rgb */ color: rgb(49, 92, 163);
/* oklch */ color: oklch(48.1% 0.124 259.9);

Tailwind

colors: {
  custom: {
    50: '#7789bf',
    500: '#315ca3',
    950: '#000000',
  },
}

SCSS

$custom: #315ca3;
$custom-light: #7789bf;
$custom-dark: #000000;

JSON

{
  "hex": "#315ca3",
  "rgb": {
    "r": 49,
    "g": 92,
    "b": 163
  },
  "hsl": {
    "h": 217.368,
    "s": 53.774,
    "l": 41.569
  },
  "oklch": {
    "l": 0.48134,
    "c": 0.12418,
    "h": 259.9
  },
  "luminance": 0.10952
}

Semantic roles & 50–950 ramp

primary

#315CA3

secondary

#BFA171

accent

#A64BDD

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #315CA3

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

Preview Lab → · Contrast checker → · Palette generator →