#2B3FAA#2B3FAA

#2B3FAA is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.3% C 0.172 H 269.3°. Best body text is #FFFFFF at 8.77:1 contrast (WCAG AA passes).

Color values

HEX	#2B3FAA
RGB	rgb(43, 63, 170)
HSL	hsl(231, 60%, 42%)
HSV	hsv(231, 75%, 67%)
CMYK	cmyk(74.7%, 62.9%, 0%, 33.3%)
CIE-LAB	lab(31.74, 30.49, -59.53)
CIE-LCH	lch(31.74, 66.89, 297.12°)
OKLab	oklab(42.35% -0.0021 -0.172)
OKLCH	oklch(42.35% 0.172 269.3)
XYZ	xyz(10.0270, 6.9698, 38.8393)
Luminance	0.0697 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3FAA #AA962B

analogous

#2B7FAA #2B3FAA #572BAA

triadic

#2B3FAA #AA2B3F #3FAA2B

tetradic

#2B3FAA #AA2B7F #AA962B #2BAA57

square

#2B3FAA #AA2B7F #AA962B #2BAA57

split-complementary

#2B3FAA #AA572B #7FAA2B

monochromatic

#121B48 #1F2D79 #2B3FAA #4359CF #7484DC

Accessibility & contrast

On white

8.77

#2B3FAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#2B3FAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3FAA

8.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3FAA	#FFFFFF	#000000	##FFFFFF
##2B3FAA	1.00	8.77	2.39	8.77
#FFFFFF	8.77	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051AD

Deuteranopia (green-blind)

#0045A8

Tritanopia (blue-blind)

#005B6E

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2b3faa;
/* rgb */ color: rgb(43, 63, 170);
/* oklch */ color: oklch(42.3% 0.172 269.3);

Tailwind

colors: {
  custom: {
    50: '#7774c4',
    500: '#2b3faa',
    950: '#000000',
  },
}

SCSS

$custom: #2b3faa;
$custom-light: #7774c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3faa",
  "rgb": {
    "r": 43,
    "g": 63,
    "b": 170
  },
  "hsl": {
    "h": 230.551,
    "s": 59.624,
    "l": 41.765
  },
  "oklch": {
    "l": 0.42347,
    "c": 0.17204,
    "h": 269.3
  },
  "luminance": 0.06971
}

Semantic roles & 50–950 ramp

primary

#2B3FAA

secondary

#C3B66E

accent

#CA45E3

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2B3FAA

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

Preview Lab → · Contrast checker → · Palette generator →