#2B3FA6#2B3FA6

#2B3FA6 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.0% C 0.167 H 269.3°. Best body text is #FFFFFF at 8.88:1 contrast (WCAG AA passes).

Color values

HEX	#2B3FA6
RGB	rgb(43, 63, 166)
HSL	hsl(230, 59%, 41%)
HSV	hsv(230, 74%, 65%)
CMYK	cmyk(74.1%, 62%, 0%, 34.9%)
CIE-LAB	lab(31.40, 29.00, -57.69)
CIE-LCH	lch(31.40, 64.57, 296.69°)
OKLab	oklab(41.99% -0.002 -0.1666)
OKLCH	oklch(41.99% 0.167 269.3)
XYZ	xyz(9.6543, 6.8208, 36.8767)
Luminance	0.0682 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3FA6 #A6922B

analogous

#2B7CA6 #2B3FA6 #542BA6

triadic

#2B3FA6 #A62B3F #3FA62B

tetradic

#2B3FA6 #A62B7C #A6922B #2BA654

square

#2B3FA6 #A62B7C #A6922B #2BA654

split-complementary

#2B3FA6 #A6542B #7CA62B

monochromatic

#121A45 #1E2D75 #2B3FA6 #4157CE #7182DA

Accessibility & contrast

On white

8.88

#2B3FA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#2B3FA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3FA6

8.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3FA6	#FFFFFF	#000000	##FFFFFF
##2B3FA6	1.00	8.88	2.36	8.88
#FFFFFF	8.88	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A9

Deuteranopia (green-blind)

#0044A4

Tritanopia (blue-blind)

#00596C

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #2b3fa6;
/* rgb */ color: rgb(43, 63, 166);
/* oklch */ color: oklch(42.0% 0.167 269.3);

Tailwind

colors: {
  custom: {
    50: '#7773c1',
    500: '#2b3fa6',
    950: '#000000',
  },
}

SCSS

$custom: #2b3fa6;
$custom-light: #7773c1;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3fa6",
  "rgb": {
    "r": 43,
    "g": 63,
    "b": 166
  },
  "hsl": {
    "h": 230.244,
    "s": 58.852,
    "l": 40.98
  },
  "oklch": {
    "l": 0.41987,
    "c": 0.16665,
    "h": 269.3
  },
  "luminance": 0.06822
}

Semantic roles & 50–950 ramp

primary

#2B3FA6

secondary

#C1B36B

accent

#C946E2

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #2B3FA6

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

Preview Lab → · Contrast checker → · Palette generator →