#313ABB#313ABB

#313ABB is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.4% C 0.198 H 271.7°. Best body text is #FFFFFF at 8.56:1 contrast (WCAG AA passes).

Color values

HEX	#313ABB
RGB	rgb(49, 58, 187)
HSL	hsl(236, 58%, 46%)
HSV	hsv(236, 74%, 73%)
CMYK	cmyk(73.8%, 69%, 0%, 26.7%)
CIE-LAB	lab(32.40, 40.41, -68.53)
CIE-LCH	lch(32.40, 79.56, 300.53°)
OKLab	oklab(43.39% 0.006 -0.1983)
OKLCH	oklch(43.39% 0.198 271.7)
XYZ	xyz(11.7463, 7.2657, 47.7874)
Luminance	0.0727 (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

#313ABB #BBB231

analogous

#317FBB #313ABB #6D31BB

triadic

#313ABB #BB313A #3ABB31

tetradic

#313ABB #BB317F #BBB231 #31BB6D

square

#313ABB #BB317F #BBB231 #31BB6D

split-complementary

#313ABB #BB6D31 #7FBB31

monochromatic

#181C5A #242B8B #313ABB #565ED3 #878DE0

Accessibility & contrast

On white

8.56

#313ABB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#313ABB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313ABB

8.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313ABB	#FFFFFF	#000000	##FFFFFF
##313ABB	1.00	8.56	2.45	8.56
#FFFFFF	8.56	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053BF

Deuteranopia (green-blind)

#0046B9

Tritanopia (blue-blind)

#005D76

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #313abb;
/* rgb */ color: rgb(49, 58, 187);
/* oklch */ color: oklch(43.4% 0.198 271.7);

Tailwind

colors: {
  custom: {
    50: '#7e71d1',
    500: '#313abb',
    950: '#000000',
  },
}

SCSS

$custom: #313abb;
$custom-light: #7e71d1;
$custom-dark: #000000;

JSON

{
  "hex": "#313abb",
  "rgb": {
    "r": 49,
    "g": 58,
    "b": 187
  },
  "hsl": {
    "h": 236.087,
    "s": 58.475,
    "l": 46.275
  },
  "oklch": {
    "l": 0.4339,
    "c": 0.19835,
    "h": 271.7
  },
  "luminance": 0.07267
}

Semantic roles & 50–950 ramp

primary

#313ABB

secondary

#C9C47F

accent

#D846E2

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #313ABB

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

Preview Lab → · Contrast checker → · Palette generator →