#2A31B7#2A31B7

#2A31B7 is a dark, highly saturated blue. Relative luminance 0.061; OKLCH L 41.2% C 0.205 H 271.0°. Best body text is #FFFFFF at 9.45:1 contrast (WCAG AA passes).

Color values

HEX	#2A31B7
RGB	rgb(42, 49, 183)
HSL	hsl(237, 63%, 44%)
HSV	hsv(237, 77%, 72%)
CMYK	cmyk(77%, 73.2%, 0%, 28.2%)
CIE-LAB	lab(29.68, 43.76, -70.67)
CIE-LCH	lch(29.68, 83.12, 301.77°)
OKLab	oklab(41.21% 0.0035 -0.2046)
OKLCH	oklch(41.21% 0.205 271)
XYZ	xyz(10.5975, 6.1066, 45.4107)
Luminance	0.0611 (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

#2A31B7 #B7B02A

analogous

#2A78B7 #2A31B7 #6A2AB7

triadic

#2A31B7 #B72A31 #31B72A

tetradic

#2A31B7 #B72A78 #B7B02A #2AB76A

square

#2A31B7 #B72A78 #B7B02A #2AB76A

split-complementary

#2A31B7 #B76A2A #78B72A

monochromatic

#131653 #1F2485 #2A31B7 #4950D5 #7B80E1

Accessibility & contrast

On white

9.45

#2A31B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#2A31B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A31B7

9.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A31B7	#FFFFFF	#000000	##FFFFFF
##2A31B7	1.00	9.45	2.22	9.45
#FFFFFF	9.45	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DBB

Deuteranopia (green-blind)

#003FB5

Tritanopia (blue-blind)

#005871

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2a31b7;
/* rgb */ color: rgb(42, 49, 183);
/* oklch */ color: oklch(41.2% 0.205 271.0);

Tailwind

colors: {
  custom: {
    50: '#7c6ace',
    500: '#2a31b7',
    950: '#000000',
  },
}

SCSS

$custom: #2a31b7;
$custom-light: #7c6ace;
$custom-dark: #000000;

JSON

{
  "hex": "#2a31b7",
  "rgb": {
    "r": 42,
    "g": 49,
    "b": 183
  },
  "hsl": {
    "h": 237.021,
    "s": 62.667,
    "l": 44.118
  },
  "oklch": {
    "l": 0.41212,
    "c": 0.20465,
    "h": 271
  },
  "luminance": 0.06108
}

Semantic roles & 50–950 ramp

primary

#2A31B7

secondary

#C9C574

accent

#DE42E6

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0614

muted

#7C7A82

Preview Lab

Preview with #2A31B7

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

Preview Lab → · Contrast checker → · Palette generator →