#2A3387#2A3387

#2A3387 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.9% C 0.139 H 272.8°. Best body text is #FFFFFF at 10.93:1 contrast (WCAG AA passes).

Color values

HEX	#2A3387
RGB	rgb(42, 51, 135)
HSL	hsl(234, 53%, 35%)
HSV	hsv(234, 69%, 53%)
CMYK	cmyk(68.9%, 62.2%, 0%, 47.1%)
CIE-LAB	lab(25.59, 25.31, -48.20)
CIE-LCH	lch(25.59, 54.44, 297.71°)
OKLab	oklab(36.86% 0.0069 -0.1389)
OKLCH	oklch(36.86% 0.139 272.8)
XYZ	xyz(6.5104, 4.6086, 23.4634)
Luminance	0.0461 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3387 #877E2A

analogous

#2A6187 #2A3387 #502A87

triadic

#2A3387 #872A33 #33872A

tetradic

#2A3387 #872A61 #877E2A #2A8750

square

#2A3387 #872A61 #877E2A #2A8750

split-complementary

#2A3387 #87502A #61872A

monochromatic

#0D102A #1B2158 #2A3387 #3945B6 #5E69CD

Accessibility & contrast

On white

10.93

#2A3387 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#2A3387 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3387

10.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3387	#FFFFFF	#000000	##FFFFFF
##2A3387	1.00	10.93	1.92	10.93
#FFFFFF	10.93	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00418A

Deuteranopia (green-blind)

#003985

Tritanopia (blue-blind)

#004858

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2a3387;
/* rgb */ color: rgb(42, 51, 135);
/* oklch */ color: oklch(36.9% 0.139 272.8);

Tailwind

colors: {
  custom: {
    50: '#706aab',
    500: '#2a3387',
    950: '#000000',
  },
}

SCSS

$custom: #2a3387;
$custom-light: #706aab;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3387",
  "rgb": {
    "r": 42,
    "g": 51,
    "b": 135
  },
  "hsl": {
    "h": 234.194,
    "s": 52.542,
    "l": 34.706
  },
  "oklch": {
    "l": 0.36857,
    "c": 0.13909,
    "h": 272.8
  },
  "luminance": 0.04609
}

Semantic roles & 50–950 ramp

primary

#2A3387

secondary

#B3AA5A

accent

#CE4CDC

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #2A3387

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

Preview Lab → · Contrast checker → · Palette generator →