#312ABB#312ABB

#312ABB is a dark, highly saturated blue. Relative luminance 0.059; OKLCH L 41.1% C 0.214 H 273.7°. Best body text is #FFFFFF at 9.64:1 contrast (WCAG AA passes).

Color values

HEX	#312ABB
RGB	rgb(49, 42, 187)
HSL	hsl(243, 63%, 45%)
HSV	hsv(243, 78%, 73%)
CMYK	cmyk(73.8%, 77.5%, 0%, 26.7%)
CIE-LAB	lab(29.15, 49.51, -73.91)
CIE-LCH	lch(29.15, 88.96, 303.82°)
OKLab	oklab(41.07% 0.0137 -0.2138)
OKLCH	oklch(41.07% 0.214 273.7)
XYZ	xyz(11.0612, 5.8956, 47.5591)
Luminance	0.0590 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312ABB #B4BB2A

analogous

#2A6BBB #312ABB #7A2ABB

triadic

#312ABB #BB312A #2ABB31

tetradic

#312ABB #BB2A6B #B4BB2A #2ABB7A

square

#312ABB #BB2A6B #B4BB2A #2ABB7A

split-complementary

#312ABB #BB7A2A #6BBB2A

monochromatic

#171457 #241F89 #312ABB #524CD7 #827DE2

Accessibility & contrast

On white

9.64

#312ABB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#312ABB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312ABB

9.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312ABB	#FFFFFF	#000000	##FFFFFF
##312ABB	1.00	9.64	2.18	9.64
#FFFFFF	9.64	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BBF

Deuteranopia (green-blind)

#003EB8

Tritanopia (blue-blind)

#005672

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #312abb;
/* rgb */ color: rgb(49, 42, 187);
/* oklch */ color: oklch(41.1% 0.214 273.7);

Tailwind

colors: {
  custom: {
    50: '#8067d1',
    500: '#312abb',
    950: '#000000',
  },
}

SCSS

$custom: #312abb;
$custom-light: #8067d1;
$custom-dark: #000000;

JSON

{
  "hex": "#312abb",
  "rgb": {
    "r": 49,
    "g": 42,
    "b": 187
  },
  "hsl": {
    "h": 242.897,
    "s": 63.319,
    "l": 44.902
  },
  "oklch": {
    "l": 0.4107,
    "c": 0.21426,
    "h": 273.7
  },
  "luminance": 0.05897
}

Semantic roles & 50–950 ramp

primary

#312ABB

secondary

#C6CA76

accent

#E641DE

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0614

muted

#7D7A83

Preview Lab

Preview with #312ABB

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

Preview Lab → · Contrast checker → · Palette generator →