#313EC9#313EC9

#313EC9 is a mid, highly saturated blue. Relative luminance 0.083; OKLCH L 45.4% C 0.212 H 270.6°. Best body text is #FFFFFF at 7.89:1 contrast (WCAG AA passes).

Color values

HEX	#313EC9
RGB	rgb(49, 62, 201)
HSL	hsl(235, 61%, 49%)
HSV	hsv(235, 76%, 79%)
CMYK	cmyk(75.6%, 69.2%, 0%, 21.2%)
CIE-LAB	lab(34.63, 42.83, -73.08)
CIE-LCH	lch(34.63, 84.71, 300.37°)
OKLab	oklab(45.4% 0.0023 -0.2115)
OKLCH	oklch(45.4% 0.212 270.6)
XYZ	xyz(13.5283, 8.3138, 56.1388)
Luminance	0.0832 (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

#313EC9 #C9BC31

analogous

#318AC9 #313EC9 #7031C9

triadic

#313EC9 #C9313E #3EC931

tetradic

#313EC9 #C9318A #C9BC31 #31C970

square

#313EC9 #C9318A #C9BC31 #31C970

split-complementary

#313EC9 #C97031 #8AC931

monochromatic

#192067 #252F98 #313EC9 #5F6AD8 #9098E4

Accessibility & contrast

On white

7.89

#313EC9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#313EC9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313EC9

7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313EC9	#FFFFFF	#000000	##FFFFFF
##313EC9	1.00	7.89	2.66	7.89
#FFFFFF	7.89	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059CD

Deuteranopia (green-blind)

#004AC6

Tritanopia (blue-blind)

#00647F

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #313ec9;
/* rgb */ color: rgb(49, 62, 201);
/* oklch */ color: oklch(45.4% 0.212 270.6);

Tailwind

colors: {
  custom: {
    50: '#8174db',
    500: '#313ec9',
    950: '#000000',
  },
}

SCSS

$custom: #313ec9;
$custom-light: #8174db;
$custom-dark: #000000;

JSON

{
  "hex": "#313ec9",
  "rgb": {
    "r": 49,
    "g": 62,
    "b": 201
  },
  "hsl": {
    "h": 234.868,
    "s": 60.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.45401,
    "c": 0.21155,
    "h": 270.6
  },
  "luminance": 0.08315
}

Semantic roles & 50–950 ramp

primary

#313EC9

secondary

#CFC987

accent

#D644E4

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #313EC9

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

Preview Lab → · Contrast checker → · Palette generator →