#315EA4#315EA4

#315EA4 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 48.7% C 0.123 H 259.0°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#315EA4
RGB	rgb(49, 94, 164)
HSL	hsl(217, 54%, 42%)
HSV	hsv(217, 70%, 64%)
CMYK	cmyk(70.1%, 42.7%, 0%, 35.7%)
CIE-LAB	lab(40.14, 8.61, -42.35)
CIE-LCH	lch(40.14, 43.22, 281.49°)
OKLab	oklab(48.65% -0.0236 -0.1209)
OKLCH	oklch(48.65% 0.123 259)
XYZ	xyz(11.9678, 11.3375, 36.6724)
Luminance	0.1134 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315EA4 #A47731

analogous

#3198A4 #315EA4 #3E31A4

triadic

#315EA4 #A4315E #5EA431

tetradic

#315EA4 #A43198 #A47731 #31A43E

square

#315EA4 #A43198 #A47731 #31A43E

split-complementary

#315EA4 #A43E31 #98A431

monochromatic

#152846 #234375 #315EA4 #497BC9 #799DD7

Accessibility & contrast

On white

6.43

#315EA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#315EA4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315EA4

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315EA4	#FFFFFF	#000000	##FFFFFF
##315EA4	1.00	6.43	3.27	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D64A7

Deuteranopia (green-blind)

#2A5AA3

Tritanopia (blue-blind)

#006E79

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #315ea4;
/* rgb */ color: rgb(49, 94, 164);
/* oklch */ color: oklch(48.7% 0.123 259.0);

Tailwind

colors: {
  custom: {
    50: '#778bbf',
    500: '#315ea4',
    950: '#000000',
  },
}

SCSS

$custom: #315ea4;
$custom-light: #778bbf;
$custom-dark: #000000;

JSON

{
  "hex": "#315ea4",
  "rgb": {
    "r": 49,
    "g": 94,
    "b": 164
  },
  "hsl": {
    "h": 216.522,
    "s": 53.991,
    "l": 41.765
  },
  "oklch": {
    "l": 0.48653,
    "c": 0.12321,
    "h": 259
  },
  "luminance": 0.11339
}

Semantic roles & 50–950 ramp

primary

#315EA4

secondary

#BFA172

accent

#A44ADD

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #315EA4

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

Preview Lab → · Contrast checker → · Palette generator →