#315FBB#315FBB

#315FBB is a mid, vivid blue. Relative luminance 0.124; OKLCH L 50.5% C 0.154 H 262.3°. Best body text is #FFFFFF at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#315FBB
RGB	rgb(49, 95, 187)
HSL	hsl(220, 58%, 46%)
HSV	hsv(220, 74%, 73%)
CMYK	cmyk(73.8%, 49.2%, 0%, 26.7%)
CIE-LAB	lab(41.88, 16.60, -53.10)
CIE-LCH	lch(41.88, 55.63, 287.36°)
OKLab	oklab(50.46% -0.0205 -0.1525)
OKLCH	oklch(50.46% 0.154 262.3)
XYZ	xyz(14.3253, 12.4237, 48.6471)
Luminance	0.1242 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315FBB #BB8D31

analogous

#31A4BB #315FBB #4831BB

triadic

#315FBB #BB315F #5FBB31

tetradic

#315FBB #BB31A4 #BB8D31 #31BB48

square

#315FBB #BB31A4 #BB8D31 #31BB48

split-complementary

#315FBB #BB4831 #A4BB31

monochromatic

#182E5A #24468B #315FBB #5680D3 #87A4E0

Accessibility & contrast

On white

6.03

#315FBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#315FBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315FBB

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315FBB	#FFFFFF	#000000	##FFFFFF
##315FBB	1.00	6.03	3.49	6.03
#FFFFFF	6.03	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A6ABE

Deuteranopia (green-blind)

#005DB9

Tritanopia (blue-blind)

#007584

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #315fbb;
/* rgb */ color: rgb(49, 95, 187);
/* oklch */ color: oklch(50.5% 0.154 262.3);

Tailwind

colors: {
  custom: {
    50: '#7c8bd0',
    500: '#315fbb',
    950: '#000000',
  },
}

SCSS

$custom: #315fbb;
$custom-light: #7c8bd0;
$custom-dark: #000000;

JSON

{
  "hex": "#315fbb",
  "rgb": {
    "r": 49,
    "g": 95,
    "b": 187
  },
  "hsl": {
    "h": 220,
    "s": 58.475,
    "l": 46.275
  },
  "oklch": {
    "l": 0.50458,
    "c": 0.15389,
    "h": 262.3
  },
  "luminance": 0.12425
}

Semantic roles & 50–950 ramp

primary

#315FBB

secondary

#C9B07F

accent

#AE46E2

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #315FBB

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

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