#313BBE#313BBE

#313BBE is a dark, highly saturated blue. Relative luminance 0.075; OKLCH L 43.8% C 0.201 H 271.4°. Best body text is #FFFFFF at 8.40:1 contrast (WCAG AA passes).

Color values

HEX	#313BBE
RGB	rgb(49, 59, 190)
HSL	hsl(236, 59%, 47%)
HSV	hsv(236, 74%, 75%)
CMYK	cmyk(74.2%, 68.9%, 0%, 25.5%)
CIE-LAB	lab(32.91, 40.84, -69.47)
CIE-LCH	lch(32.91, 80.58, 300.46°)
OKLab	oklab(43.85% 0.0051 -0.201)
OKLCH	oklch(43.85% 0.201 271.4)
XYZ	xyz(12.1217, 7.4973, 49.5135)
Luminance	0.0750 (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

#313BBE #BEB431

analogous

#3181BE #313BBE #6E31BE

triadic

#313BBE #BE313B #3BBE31

tetradic

#313BBE #BE3181 #BEB431 #31BE6E

square

#313BBE #BE3181 #BEB431 #31BE6E

split-complementary

#313BBE #BE6E31 #81BE31

monochromatic

#181D5D #242C8D #313BBE #5861D4 #898FE1

Accessibility & contrast

On white

8.40

#313BBE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#313BBE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313BBE

8.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313BBE	#FFFFFF	#000000	##FFFFFF
##313BBE	1.00	8.40	2.50	8.40
#FFFFFF	8.40	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C2

Deuteranopia (green-blind)

#0047BC

Tritanopia (blue-blind)

#005F78

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #313bbe;
/* rgb */ color: rgb(49, 59, 190);
/* oklch */ color: oklch(43.8% 0.201 271.4);

Tailwind

colors: {
  custom: {
    50: '#7f71d3',
    500: '#313bbe',
    950: '#000000',
  },
}

SCSS

$custom: #313bbe;
$custom-light: #7f71d3;
$custom-dark: #000000;

JSON

{
  "hex": "#313bbe",
  "rgb": {
    "r": 49,
    "g": 59,
    "b": 190
  },
  "hsl": {
    "h": 235.745,
    "s": 58.996,
    "l": 46.863
  },
  "oklch": {
    "l": 0.43845,
    "c": 0.20104,
    "h": 271.4
  },
  "luminance": 0.07499
}

Semantic roles & 50–950 ramp

primary

#313BBE

secondary

#CAC580

accent

#D746E2

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #313BBE

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

Preview Lab → · Contrast checker → · Palette generator →