#2A31A1#2A31A1

#2A31A1 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 39.0% C 0.177 H 272.1°. Best body text is #FFFFFF at 10.23:1 contrast (WCAG AA passes).

Color values

HEX	#2A31A1
RGB	rgb(42, 49, 161)
HSL	hsl(236, 59%, 40%)
HSV	hsv(236, 74%, 63%)
CMYK	cmyk(73.9%, 69.6%, 0%, 36.9%)
CIE-LAB	lab(27.47, 36.10, -61.12)
CIE-LCH	lch(27.47, 70.98, 300.57°)
OKLab	oklab(38.96% 0.0064 -0.1768)
OKLCH	oklch(38.96% 0.177 272.1)
XYZ	xyz(8.4840, 5.2612, 34.2797)
Luminance	0.0526 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A31A1 #A19A2A

analogous

#2A6CA1 #2A31A1 #5F2AA1

triadic

#2A31A1 #A12A31 #31A12A

tetradic

#2A31A1 #A12A6C #A19A2A #2AA15F

square

#2A31A1 #A12A6C #A19A2A #2AA15F

split-complementary

#2A31A1 #A15F2A #6CA12A

monochromatic

#111340 #1D2270 #2A31A1 #3C45CC #6D73D9

Accessibility & contrast

On white

10.23

#2A31A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#2A31A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A31A1

10.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A31A1	#FFFFFF	#000000	##FFFFFF
##2A31A1	1.00	10.23	2.05	10.23
#FFFFFF	10.23	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047A4

Deuteranopia (green-blind)

#003B9F

Tritanopia (blue-blind)

#005065

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2a31a1;
/* rgb */ color: rgb(42, 49, 161);
/* oklch */ color: oklch(39.0% 0.177 272.1);

Tailwind

colors: {
  custom: {
    50: '#7669be',
    500: '#2a31a1',
    950: '#000000',
  },
}

SCSS

$custom: #2a31a1;
$custom-light: #7669be;
$custom-dark: #000000;

JSON

{
  "hex": "#2a31a1",
  "rgb": {
    "r": 42,
    "g": 49,
    "b": 161
  },
  "hsl": {
    "h": 236.471,
    "s": 58.621,
    "l": 39.804
  },
  "oklch": {
    "l": 0.38958,
    "c": 0.17689,
    "h": 272.1
  },
  "luminance": 0.05262
}

Semantic roles & 50–950 ramp

primary

#2A31A1

secondary

#C0BA67

accent

#D946E2

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2A31A1

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

Preview Lab → · Contrast checker → · Palette generator →