#313DC9#313DC9

#313DC9 is a mid, highly saturated blue. Relative luminance 0.082; OKLCH L 45.2% C 0.213 H 270.7°. Best body text is #FFFFFF at 7.95:1 contrast (WCAG AA passes).

Color values

HEX	#313DC9
RGB	rgb(49, 61, 201)
HSL	hsl(235, 61%, 49%)
HSV	hsv(235, 76%, 79%)
CMYK	cmyk(75.6%, 69.7%, 0%, 21.2%)
CIE-LAB	lab(34.41, 43.43, -73.44)
CIE-LCH	lch(34.41, 85.33, 300.60°)
OKLab	oklab(45.24% 0.0028 -0.2126)
OKLCH	oklch(45.24% 0.213 270.7)
XYZ	xyz(13.4744, 8.2060, 56.1208)
Luminance	0.0821 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313DC9 #C9BD31

analogous

#3189C9 #313DC9 #7131C9

triadic

#313DC9 #C9313D #3DC931

tetradic

#313DC9 #C93189 #C9BD31 #31C971

square

#313DC9 #C93189 #C9BD31 #31C971

split-complementary

#313DC9 #C97131 #89C931

monochromatic

#191F67 #252E98 #313DC9 #5F69D8 #9097E4

Accessibility & contrast

On white

7.95

#313DC9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#313DC9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313DC9

7.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313DC9	#FFFFFF	#000000	##FFFFFF
##313DC9	1.00	7.95	2.64	7.95
#FFFFFF	7.95	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058CD

Deuteranopia (green-blind)

#004AC6

Tritanopia (blue-blind)

#00647E

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #313dc9;
/* rgb */ color: rgb(49, 61, 201);
/* oklch */ color: oklch(45.2% 0.213 270.7);

Tailwind

colors: {
  custom: {
    50: '#8173db',
    500: '#313dc9',
    950: '#000000',
  },
}

SCSS

$custom: #313dc9;
$custom-light: #8173db;
$custom-dark: #000000;

JSON

{
  "hex": "#313dc9",
  "rgb": {
    "r": 49,
    "g": 61,
    "b": 201
  },
  "hsl": {
    "h": 235.263,
    "s": 60.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.45242,
    "c": 0.21261,
    "h": 270.7
  },
  "luminance": 0.08208
}

Semantic roles & 50–950 ramp

primary

#313DC9

secondary

#CFC987

accent

#D744E4

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #313DC9

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

Preview Lab → · Contrast checker → · Palette generator →