#311EAD#311EAD

#311EAD is a dark, highly saturated blue. Relative luminance 0.046; OKLCH L 38.1% C 0.208 H 276.0°. Best body text is #FFFFFF at 10.94:1 contrast (WCAG AA passes).

Color values

HEX	#311EAD
RGB	rgb(49, 30, 173)
HSL	hsl(248, 70%, 40%)
HSV	hsv(248, 83%, 68%)
CMYK	cmyk(71.7%, 82.7%, 0%, 32.2%)
CIE-LAB	lab(25.56, 51.04, -71.50)
CIE-LCH	lch(25.56, 87.85, 305.52°)
OKLab	oklab(38.11% 0.0219 -0.2067)
OKLCH	oklch(38.11% 0.208 276)
XYZ	xyz(9.2713, 4.5978, 39.9259)
Luminance	0.0460 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311EAD #9AAD1E

analogous

#1E53AD #311EAD #791EAD

triadic

#311EAD #AD311E #1EAD31

tetradic

#311EAD #AD1E53 #9AAD1E #1EAD79

square

#311EAD #AD1E53 #9AAD1E #1EAD79

split-complementary

#311EAD #AD791E #53AD1E

monochromatic

#130C45 #221579 #311EAD #452EDB #7362E4

Accessibility & contrast

On white

10.94

#311EAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#311EAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311EAD

10.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311EAD	#FFFFFF	#000000	##FFFFFF
##311EAD	1.00	10.94	1.92	10.94
#FFFFFF	10.94	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042B1

Deuteranopia (green-blind)

#0036AB

Tritanopia (blue-blind)

#004C67

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #311ead;
/* rgb */ color: rgb(49, 30, 173);
/* oklch */ color: oklch(38.1% 0.208 276.0);

Tailwind

colors: {
  custom: {
    50: '#7d5fc7',
    500: '#311ead',
    950: '#000000',
  },
}

SCSS

$custom: #311ead;
$custom-light: #7d5fc7;
$custom-dark: #000000;

JSON

{
  "hex": "#311ead",
  "rgb": {
    "r": 49,
    "g": 30,
    "b": 173
  },
  "hsl": {
    "h": 247.972,
    "s": 70.443,
    "l": 39.804
  },
  "oklch": {
    "l": 0.38109,
    "c": 0.20782,
    "h": 276
  },
  "luminance": 0.04599
}

Semantic roles & 50–950 ramp

primary

#311EAD

secondary

#BAC85E

accent

#ED3BD5

background

#F8F5FC

surface

#F0EAF8

border

#CBC6D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #311EAD

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

Preview Lab → · Contrast checker → · Palette generator →