#315FB1#315FB1

#315FB1 is a mid, vivid blue. Relative luminance 0.120; OKLCH L 49.8% C 0.140 H 261.0°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#315FB1
RGB	rgb(49, 95, 177)
HSL	hsl(218, 57%, 44%)
HSV	hsv(218, 72%, 69%)
CMYK	cmyk(72.3%, 46.3%, 0%, 30.6%)
CIE-LAB	lab(41.23, 12.84, -48.29)
CIE-LCH	lch(41.23, 49.97, 284.89°)
OKLab	oklab(49.75% -0.022 -0.1384)
OKLCH	oklch(49.75% 0.14 261)
XYZ	xyz(13.2918, 12.0103, 43.2042)
Luminance	0.1201 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315FB1 #B18331

analogous

#319FB1 #315FB1 #4331B1

triadic

#315FB1 #B1315F #5FB131

tetradic

#315FB1 #B1319F #B18331 #31B143

square

#315FB1 #B1319F #B18331 #31B143

split-complementary

#315FB1 #B14331 #9FB131

monochromatic

#162C51 #244581 #315FB1 #517ECF #80A1DC

Accessibility & contrast

On white

6.17

#315FB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#315FB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315FB1

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315FB1	#FFFFFF	#000000	##FFFFFF
##315FB1	1.00	6.17	3.40	6.17
#FFFFFF	6.17	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3568B4

Deuteranopia (green-blind)

#195CAF

Tritanopia (blue-blind)

#00727F

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #315fb1;
/* rgb */ color: rgb(49, 95, 177);
/* oklch */ color: oklch(49.8% 0.140 261.0);

Tailwind

colors: {
  custom: {
    50: '#798bc9',
    500: '#315fb1',
    950: '#000000',
  },
}

SCSS

$custom: #315fb1;
$custom-light: #798bc9;
$custom-dark: #000000;

JSON

{
  "hex": "#315fb1",
  "rgb": {
    "r": 49,
    "g": 95,
    "b": 177
  },
  "hsl": {
    "h": 218.438,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.49752,
    "c": 0.14011,
    "h": 261
  },
  "luminance": 0.12012
}

Semantic roles & 50–950 ramp

primary

#315FB1

secondary

#C5AA79

accent

#A948E0

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #315FB1

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

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