#2A3FB6#2A3FB6

#2A3FB6 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.4% C 0.188 H 268.9°. Best body text is #FFFFFF at 8.45:1 contrast (WCAG AA passes).

Color values

HEX	#2A3FB6
RGB	rgb(42, 63, 182)
HSL	hsl(231, 63%, 44%)
HSV	hsv(231, 77%, 71%)
CMYK	cmyk(76.9%, 65.4%, 0%, 28.6%)
CIE-LAB	lab(32.75, 34.79, -65.02)
CIE-LCH	lch(32.75, 73.74, 298.15°)
OKLab	oklab(43.41% -0.0035 -0.1881)
OKLCH	oklch(43.41% 0.188 268.9)
XYZ	xyz(11.1729, 7.4234, 45.0909)
Luminance	0.0742 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.97

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3FB6 #B6A12A

analogous

#2A85B6 #2A3FB6 #5B2AB6

triadic

#2A3FB6 #B62A3F #3FB62A

tetradic

#2A3FB6 #B62A85 #B6A12A #2AB65B

square

#2A3FB6 #B62A85 #B6A12A #2AB65B

split-complementary

#2A3FB6 #B65B2A #85B62A

monochromatic

#131D53 #1F2E84 #2A3FB6 #485DD5 #7A89E0

Accessibility & contrast

On white

8.45

#2A3FB6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#2A3FB6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3FB6

8.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3FB6	#FFFFFF	#000000	##FFFFFF
##2A3FB6	1.00	8.45	2.49	8.45
#FFFFFF	8.45	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054BA

Deuteranopia (green-blind)

#0046B4

Tritanopia (blue-blind)

#005F75

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #2a3fb6;
/* rgb */ color: rgb(42, 63, 182);
/* oklch */ color: oklch(43.4% 0.188 268.9);

Tailwind

colors: {
  custom: {
    50: '#7a74cd',
    500: '#2a3fb6',
    950: '#000000',
  },
}

SCSS

$custom: #2a3fb6;
$custom-light: #7a74cd;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3fb6",
  "rgb": {
    "r": 42,
    "g": 63,
    "b": 182
  },
  "hsl": {
    "h": 231,
    "s": 62.5,
    "l": 43.922
  },
  "oklch": {
    "l": 0.43406,
    "c": 0.18815,
    "h": 268.9
  },
  "luminance": 0.07425
}

Semantic roles & 50–950 ramp

primary

#2A3FB6

secondary

#C8BC73

accent

#CD42E6

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #2A3FB6

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

Preview Lab → · Contrast checker → · Palette generator →