#315EC9#315EC9

#315EC9 is a mid, vivid blue. Relative luminance 0.129; OKLCH L 51.3% C 0.174 H 264.0°. Best body text is #FFFFFF at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#315EC9
RGB	rgb(49, 94, 201)
HSL	hsl(222, 61%, 49%)
HSV	hsv(222, 76%, 79%)
CMYK	cmyk(75.6%, 53.2%, 0%, 21.2%)
CIE-LAB	lab(42.57, 22.50, -60.11)
CIE-LCH	lch(42.57, 64.18, 290.53°)
OKLab	oklab(51.29% -0.0181 -0.1732)
OKLCH	oklch(51.29% 0.174 264)
XYZ	xyz(15.8082, 12.8736, 56.8987)
Luminance	0.1288 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315EC9 #C99C31

analogous

#31AAC9 #315EC9 #5031C9

triadic

#315EC9 #C9315E #5EC931

tetradic

#315EC9 #C931AA #C99C31 #31C950

square

#315EC9 #C931AA #C99C31 #31C950

split-complementary

#315EC9 #C95031 #AAC931

monochromatic

#193067 #254798 #315EC9 #5F83D8 #90A9E4

Accessibility & contrast

On white

5.87

#315EC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#315EC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315EC9

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315EC9	#FFFFFF	#000000	##FFFFFF
##315EC9	1.00	5.87	3.58	5.87
#FFFFFF	5.87	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#096CCD

Deuteranopia (green-blind)

#005EC7

Tritanopia (blue-blind)

#00788A

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #315ec9;
/* rgb */ color: rgb(49, 94, 201);
/* oklch */ color: oklch(51.3% 0.174 264.0);

Tailwind

colors: {
  custom: {
    50: '#7f8bda',
    500: '#315ec9',
    950: '#000000',
  },
}

SCSS

$custom: #315ec9;
$custom-light: #7f8bda;
$custom-dark: #000000;

JSON

{
  "hex": "#315ec9",
  "rgb": {
    "r": 49,
    "g": 94,
    "b": 201
  },
  "hsl": {
    "h": 222.237,
    "s": 60.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.51291,
    "c": 0.1741,
    "h": 264
  },
  "luminance": 0.12875
}

Semantic roles & 50–950 ramp

primary

#315EC9

secondary

#CFBA87

accent

#B544E4

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #315EC9

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

Preview Lab → · Contrast checker → · Palette generator →