#313288#313288

#313288 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.2% C 0.140 H 276.7°. Best body text is #FFFFFF at 10.81:1 contrast (WCAG AA passes).

Color values

HEX	#313288
RGB	rgb(49, 50, 136)
HSL	hsl(239, 47%, 36%)
HSV	hsv(239, 64%, 53%)
CMYK	cmyk(64%, 63.2%, 0%, 46.7%)
CIE-LAB	lab(25.90, 27.49, -48.30)
CIE-LCH	lch(25.90, 55.58, 299.64°)
OKLab	oklab(37.24% 0.0163 -0.139)
OKLCH	oklch(37.24% 0.14 276.7)
XYZ	xyz(6.8497, 4.7112, 23.8362)
Luminance	0.0471 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313288 #888731

analogous

#315E88 #313288 #5C3188

triadic

#313288 #883132 #328831

tetradic

#313288 #88315E #888731 #31885C

square

#313288 #88315E #888731 #31885C

split-complementary

#313288 #885C31 #5E8831

monochromatic

#11112E #21215B #313288 #4143B5 #6A6BC9

Accessibility & contrast

On white

10.81

#313288 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#313288 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313288

10.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313288	#FFFFFF	#000000	##FFFFFF
##313288	1.00	10.81	1.94	10.81
#FFFFFF	10.81	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00418B

Deuteranopia (green-blind)

#003A86

Tritanopia (blue-blind)

#004758

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #313288;
/* rgb */ color: rgb(49, 50, 136);
/* oklch */ color: oklch(37.2% 0.140 276.7);

Tailwind

colors: {
  custom: {
    50: '#736aab',
    500: '#313288',
    950: '#000000',
  },
}

SCSS

$custom: #313288;
$custom-light: #736aab;
$custom-dark: #000000;

JSON

{
  "hex": "#313288",
  "rgb": {
    "r": 49,
    "g": 50,
    "b": 136
  },
  "hsl": {
    "h": 239.31,
    "s": 47.027,
    "l": 36.275
  },
  "oklch": {
    "l": 0.37235,
    "c": 0.13999,
    "h": 276.7
  },
  "luminance": 0.04712
}

Semantic roles & 50–950 ramp

primary

#313288

secondary

#B1B064

accent

#D551D7

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #313288

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

Preview Lab → · Contrast checker → · Palette generator →