#315DB9#315DB9

#315DB9 is a mid, vivid blue. Relative luminance 0.120; OKLCH L 49.9% C 0.154 H 262.9°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#315DB9
RGB	rgb(49, 93, 185)
HSL	hsl(221, 58%, 46%)
HSV	hsv(221, 74%, 73%)
CMYK	cmyk(73.5%, 49.7%, 0%, 27.5%)
CIE-LAB	lab(41.19, 17.14, -53.05)
CIE-LCH	lch(41.19, 55.75, 287.91°)
OKLab	oklab(49.89% -0.0191 -0.1524)
OKLCH	oklch(49.89% 0.154 262.9)
XYZ	xyz(13.9348, 11.9829, 47.4681)
Luminance	0.1198 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315DB9 #B98D31

analogous

#31A1B9 #315DB9 #4931B9

triadic

#315DB9 #B9315D #5DB931

tetradic

#315DB9 #B931A1 #B98D31 #31B949

square

#315DB9 #B931A1 #B98D31 #31B949

split-complementary

#315DB9 #B94931 #A1B931

monochromatic

#172C58 #244589 #315DB9 #557ED2 #86A2DF

Accessibility & contrast

On white

6.18

#315DB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#315DB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315DB9

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315DB9	#FFFFFF	#000000	##FFFFFF
##315DB9	1.00	6.18	3.40	6.18
#FFFFFF	6.18	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2768BC

Deuteranopia (green-blind)

#005BB7

Tritanopia (blue-blind)

#007382

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #315db9;
/* rgb */ color: rgb(49, 93, 185);
/* oklch */ color: oklch(49.9% 0.154 262.9);

Tailwind

colors: {
  custom: {
    50: '#7b8acf',
    500: '#315db9',
    950: '#000000',
  },
}

SCSS

$custom: #315db9;
$custom-light: #7b8acf;
$custom-dark: #000000;

JSON

{
  "hex": "#315db9",
  "rgb": {
    "r": 49,
    "g": 93,
    "b": 185
  },
  "hsl": {
    "h": 220.588,
    "s": 58.12,
    "l": 45.882
  },
  "oklch": {
    "l": 0.49886,
    "c": 0.1536,
    "h": 262.9
  },
  "luminance": 0.11984
}

Semantic roles & 50–950 ramp

primary

#315DB9

secondary

#C8B07D

accent

#AF46E1

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #315DB9

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

Preview Lab → · Contrast checker → · Palette generator →