#313397#313397

#313397 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.8% C 0.159 H 275.2°. Best body text is #FFFFFF at 10.24:1 contrast (WCAG AA passes).

Color values

HEX	#313397
RGB	rgb(49, 51, 151)
HSL	hsl(239, 51%, 39%)
HSV	hsv(239, 68%, 59%)
CMYK	cmyk(67.5%, 66.2%, 0%, 40.8%)
CIE-LAB	lab(27.45, 32.16, -55.03)
CIE-LCH	lch(27.45, 63.74, 300.30°)
OKLab	oklab(38.78% 0.0144 -0.1588)
OKLCH	oklch(38.78% 0.159 275.2)
XYZ	xyz(8.0345, 5.2543, 29.8629)
Luminance	0.0525 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313397 #979531

analogous

#316697 #313397 #623197

triadic

#313397 #973133 #339731

tetradic

#313397 #973166 #979531 #319762

square

#313397 #973166 #979531 #319762

split-complementary

#313397 #976231 #669731

monochromatic

#13143B #222369 #313397 #4346C2 #7173D1

Accessibility & contrast

On white

10.24

#313397 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#313397 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313397

10.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313397	#FFFFFF	#000000	##FFFFFF
##313397	1.00	10.24	2.05	10.24
#FFFFFF	10.24	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00459A

Deuteranopia (green-blind)

#003C95

Tritanopia (blue-blind)

#004D60

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #313397;
/* rgb */ color: rgb(49, 51, 151);
/* oklch */ color: oklch(38.8% 0.159 275.2);

Tailwind

colors: {
  custom: {
    50: '#776bb6',
    500: '#313397',
    950: '#000000',
  },
}

SCSS

$custom: #313397;
$custom-light: #776bb6;
$custom-dark: #000000;

JSON

{
  "hex": "#313397",
  "rgb": {
    "r": 49,
    "g": 51,
    "b": 151
  },
  "hsl": {
    "h": 238.824,
    "s": 51,
    "l": 39.216
  },
  "oklch": {
    "l": 0.38776,
    "c": 0.15944,
    "h": 275.2
  },
  "luminance": 0.05255
}

Semantic roles & 50–950 ramp

primary

#313397

secondary

#B9B76B

accent

#D84DDA

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0611

muted

#7C7A80

Preview Lab

Preview with #313397

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

Preview Lab → · Contrast checker → · Palette generator →