#311EAC#311EAC

#311EAC is a dark, highly saturated blue. Relative luminance 0.046; OKLCH L 38.0% C 0.207 H 276.2°. Best body text is #FFFFFF at 10.98:1 contrast (WCAG AA passes).

Color values

HEX	#311EAC
RGB	rgb(49, 30, 172)
HSL	hsl(248, 70%, 40%)
HSV	hsv(248, 83%, 67%)
CMYK	cmyk(71.5%, 82.6%, 0%, 32.5%)
CIE-LAB	lab(25.44, 50.74, -71.09)
CIE-LCH	lch(25.44, 87.34, 305.52°)
OKLab	oklab(38% 0.0222 -0.2055)
OKLCH	oklch(38% 0.207 276.2)
XYZ	xyz(9.1749, 4.5592, 39.4182)
Luminance	0.0456 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311EAC #99AC1E

analogous

#1E52AC #311EAC #781EAC

triadic

#311EAC #AC311E #1EAC31

tetradic

#311EAC #AC1E52 #99AC1E #1EAC78

square

#311EAC #AC1E52 #99AC1E #1EAC78

split-complementary

#311EAC #AC781E #52AC1E

monochromatic

#130C44 #221578 #311EAC #442DDA #7261E3

Accessibility & contrast

On white

10.98

#311EAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#311EAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311EAC

10.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311EAC	#FFFFFF	#000000	##FFFFFF
##311EAC	1.00	10.98	1.91	10.98
#FFFFFF	10.98	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042B0

Deuteranopia (green-blind)

#0036AA

Tritanopia (blue-blind)

#004B67

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #311eac;
/* rgb */ color: rgb(49, 30, 172);
/* oklch */ color: oklch(38.0% 0.207 276.2);

Tailwind

colors: {
  custom: {
    50: '#7d5fc6',
    500: '#311eac',
    950: '#000000',
  },
}

SCSS

$custom: #311eac;
$custom-light: #7d5fc6;
$custom-dark: #000000;

JSON

{
  "hex": "#311eac",
  "rgb": {
    "r": 49,
    "g": 30,
    "b": 172
  },
  "hsl": {
    "h": 248.028,
    "s": 70.297,
    "l": 39.608
  },
  "oklch": {
    "l": 0.37995,
    "c": 0.20667,
    "h": 276.2
  },
  "luminance": 0.0456
}

Semantic roles & 50–950 ramp

primary

#311EAC

secondary

#BAC85E

accent

#ED3BD5

background

#F8F5FC

surface

#F0EAF8

border

#CBC6D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #311EAC

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

Preview Lab → · Contrast checker → · Palette generator →