#315BB6#315BB6

#315BB6 is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.2% C 0.152 H 263.3°. Best body text is #FFFFFF at 6.36:1 contrast (WCAG AA passes).

Color values

HEX	#315BB6
RGB	rgb(49, 91, 182)
HSL	hsl(221, 58%, 45%)
HSV	hsv(221, 73%, 71%)
CMYK	cmyk(73.1%, 50%, 0%, 28.6%)
CIE-LAB	lab(40.43, 17.32, -52.52)
CIE-LCH	lch(40.43, 55.30, 288.25°)
OKLab	oklab(49.24% -0.0178 -0.1509)
OKLCH	oklch(49.24% 0.152 263.3)
XYZ	xyz(13.4482, 11.5111, 45.7600)
Luminance	0.1151 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315BB6 #B68C31

analogous

#319DB6 #315BB6 #4A31B6

triadic

#315BB6 #B6315B #5BB631

tetradic

#315BB6 #B6319D #B68C31 #31B64A

square

#315BB6 #B6319D #B68C31 #31B64A

split-complementary

#315BB6 #B64A31 #9DB631

monochromatic

#172B56 #244386 #315BB6 #537BD1 #84A0DE

Accessibility & contrast

On white

6.36

#315BB6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#315BB6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315BB6

6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315BB6	#FFFFFF	#000000	##FFFFFF
##315BB6	1.00	6.36	3.30	6.36
#FFFFFF	6.36	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2666B9

Deuteranopia (green-blind)

#005AB4

Tritanopia (blue-blind)

#007180

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #315bb6;
/* rgb */ color: rgb(49, 91, 182);
/* oklch */ color: oklch(49.2% 0.152 263.3);

Tailwind

colors: {
  custom: {
    50: '#7b88cc',
    500: '#315bb6',
    950: '#000000',
  },
}

SCSS

$custom: #315bb6;
$custom-light: #7b88cc;
$custom-dark: #000000;

JSON

{
  "hex": "#315bb6",
  "rgb": {
    "r": 49,
    "g": 91,
    "b": 182
  },
  "hsl": {
    "h": 221.053,
    "s": 57.576,
    "l": 45.294
  },
  "oklch": {
    "l": 0.4924,
    "c": 0.15192,
    "h": 263.3
  },
  "luminance": 0.11513
}

Semantic roles & 50–950 ramp

primary

#315BB6

secondary

#C7AF7C

accent

#B047E1

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #315BB6

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

Preview Lab → · Contrast checker → · Palette generator →