#315EB4#315EB4

#315EB4 is a mid, vivid blue. Relative luminance 0.120; OKLCH L 49.7% C 0.145 H 261.8°. Best body text is #FFFFFF at 6.19:1 contrast (WCAG AA passes).

Color values

HEX	#315EB4
RGB	rgb(49, 94, 180)
HSL	hsl(219, 57%, 45%)
HSV	hsv(219, 73%, 71%)
CMYK	cmyk(72.8%, 47.8%, 0%, 29.4%)
CIE-LAB	lab(41.14, 14.61, -50.20)
CIE-LCH	lch(41.14, 52.28, 286.23°)
OKLab	oklab(49.74% -0.0207 -0.144)
OKLCH	oklch(49.74% 0.145 261.8)
XYZ	xyz(13.5046, 11.9522, 44.7665)
Luminance	0.1195 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315EB4 #B48731

analogous

#31A0B4 #315EB4 #4531B4

triadic

#315EB4 #B4315E #5EB431

tetradic

#315EB4 #B431A0 #B48731 #31B445

square

#315EB4 #B431A0 #B48731 #31B445

split-complementary

#315EB4 #B44531 #A0B431

monochromatic

#172C54 #244584 #315EB4 #527DD0 #82A2DD

Accessibility & contrast

On white

6.19

#315EB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#315EB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315EB4

6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315EB4	#FFFFFF	#000000	##FFFFFF
##315EB4	1.00	6.19	3.39	6.19
#FFFFFF	6.19	1.00	21.00	1.00
#000000	3.39	21.00	1.00	21.00
##FFFFFF	6.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3067B7

Deuteranopia (green-blind)

#0C5BB2

Tritanopia (blue-blind)

#007280

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #315eb4;
/* rgb */ color: rgb(49, 94, 180);
/* oklch */ color: oklch(49.7% 0.145 261.8);

Tailwind

colors: {
  custom: {
    50: '#7a8bcb',
    500: '#315eb4',
    950: '#000000',
  },
}

SCSS

$custom: #315eb4;
$custom-light: #7a8bcb;
$custom-dark: #000000;

JSON

{
  "hex": "#315eb4",
  "rgb": {
    "r": 49,
    "g": 94,
    "b": 180
  },
  "hsl": {
    "h": 219.389,
    "s": 57.205,
    "l": 44.902
  },
  "oklch": {
    "l": 0.49743,
    "c": 0.14547,
    "h": 261.8
  },
  "luminance": 0.11954
}

Semantic roles & 50–950 ramp

primary

#315EB4

secondary

#C6AC7B

accent

#AC47E0

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #315EB4

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

Preview Lab → · Contrast checker → · Palette generator →