#312EB3#312EB3

#312EB3 is a dark, highly saturated blue. Relative luminance 0.059; OKLCH L 40.8% C 0.201 H 273.9°. Best body text is #FFFFFF at 9.67:1 contrast (WCAG AA passes).

Color values

HEX	#312EB3
RGB	rgb(49, 46, 179)
HSL	hsl(241, 59%, 44%)
HSV	hsv(241, 74%, 70%)
CMYK	cmyk(72.6%, 74.3%, 0%, 29.8%)
CIE-LAB	lab(29.06, 44.76, -69.30)
CIE-LCH	lch(29.06, 82.50, 302.86°)
OKLab	oklab(40.76% 0.0135 -0.2005)
OKLCH	oklch(40.76% 0.201 273.9)
XYZ	xyz(10.3776, 5.8606, 43.2234)
Luminance	0.0586 (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

#312EB3 #B0B32E

analogous

#2E6EB3 #312EB3 #742EB3

triadic

#312EB3 #B3312E #2EB331

tetradic

#312EB3 #B32E6E #B0B32E #2EB374

square

#312EB3 #B32E6E #B0B32E #2EB374

split-complementary

#312EB3 #B3742E #6EB32E

monochromatic

#161552 #242182 #312EB3 #504DD1 #807EDE

Accessibility & contrast

On white

9.67

#312EB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#312EB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312EB3

9.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312EB3	#FFFFFF	#000000	##FFFFFF
##312EB3	1.00	9.67	2.17	9.67
#FFFFFF	9.67	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BB7

Deuteranopia (green-blind)

#003EB1

Tritanopia (blue-blind)

#00546E

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #312eb3;
/* rgb */ color: rgb(49, 46, 179);
/* oklch */ color: oklch(40.8% 0.201 273.9);

Tailwind

colors: {
  custom: {
    50: '#7d69cb',
    500: '#312eb3',
    950: '#000000',
  },
}

SCSS

$custom: #312eb3;
$custom-light: #7d69cb;
$custom-dark: #000000;

JSON

{
  "hex": "#312eb3",
  "rgb": {
    "r": 49,
    "g": 46,
    "b": 179
  },
  "hsl": {
    "h": 241.353,
    "s": 59.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.40755,
    "c": 0.20092,
    "h": 273.9
  },
  "luminance": 0.05862
}

Semantic roles & 50–950 ramp

primary

#312EB3

secondary

#C5C676

accent

#E246DF

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #312EB3

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

Preview Lab → · Contrast checker → · Palette generator →