#2D3FAB#2D3FAB

#2D3FAB is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.5% C 0.173 H 270.0°. Best body text is #FFFFFF at 8.71:1 contrast (WCAG AA passes).

Color values

HEX	#2D3FAB
RGB	rgb(45, 63, 171)
HSL	hsl(231, 58%, 42%)
HSV	hsv(231, 74%, 67%)
CMYK	cmyk(73.7%, 63.2%, 0%, 32.9%)
CIE-LAB	lab(31.93, 31.09, -59.82)
CIE-LCH	lch(31.93, 67.42, 297.46°)
OKLab	oklab(42.54% -0.0001 -0.1728)
OKLCH	oklch(42.54% 0.173 270)
XYZ	xyz(10.2079, 7.0521, 39.3434)
Luminance	0.0705 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D3FAB #AB992D

analogous

#2D7EAB #2D3FAB #5A2DAB

triadic

#2D3FAB #AB2D3F #3FAB2D

tetradic

#2D3FAB #AB2D7E #AB992D #2DAB5A

square

#2D3FAB #AB2D7E #AB992D #2DAB5A

split-complementary

#2D3FAB #AB5A2D #7EAB2D

monochromatic

#141B4A #202D7B #2D3FAB #475ACE #7785DB

Accessibility & contrast

On white

8.71

#2D3FAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#2D3FAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D3FAB

8.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D3FAB	#FFFFFF	#000000	##FFFFFF
##2D3FAB	1.00	8.71	2.41	8.71
#FFFFFF	8.71	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051AE

Deuteranopia (green-blind)

#0045A9

Tritanopia (blue-blind)

#005B6F

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2d3fab;
/* rgb */ color: rgb(45, 63, 171);
/* oklch */ color: oklch(42.5% 0.173 270.0);

Tailwind

colors: {
  custom: {
    50: '#7874c5',
    500: '#2d3fab',
    950: '#000000',
  },
}

SCSS

$custom: #2d3fab;
$custom-light: #7874c5;
$custom-dark: #000000;

JSON

{
  "hex": "#2d3fab",
  "rgb": {
    "r": 45,
    "g": 63,
    "b": 171
  },
  "hsl": {
    "h": 231.429,
    "s": 58.333,
    "l": 42.353
  },
  "oklch": {
    "l": 0.42539,
    "c": 0.17284,
    "h": 270
  },
  "luminance": 0.07053
}

Semantic roles & 50–950 ramp

primary

#2D3FAB

secondary

#C3B771

accent

#CB46E2

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2D3FAB

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

Preview Lab → · Contrast checker → · Palette generator →