#2B3FB6#2B3FB6

#2B3FB6 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.5% C 0.188 H 269.2°. Best body text is #FFFFFF at 8.44:1 contrast (WCAG AA passes).

Color values

HEX	#2B3FB6
RGB	rgb(43, 63, 182)
HSL	hsl(231, 62%, 44%)
HSV	hsv(231, 76%, 71%)
CMYK	cmyk(76.4%, 65.4%, 0%, 28.6%)
CIE-LAB	lab(32.80, 34.90, -64.94)
CIE-LCH	lch(32.80, 73.72, 298.25°)
OKLab	oklab(43.45% -0.0026 -0.1879)
OKLCH	oklch(43.45% 0.188 269.2)
XYZ	xyz(11.2144, 7.4448, 45.0929)
Luminance	0.0745 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.89

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3FB6 #B6A22B

analogous

#2B85B6 #2B3FB6 #5D2BB6

triadic

#2B3FB6 #B62B3F #3FB62B

tetradic

#2B3FB6 #B62B85 #B6A22B #2BB65D

square

#2B3FB6 #B62B85 #B6A22B #2BB65D

split-complementary

#2B3FB6 #B65D2B #85B62B

monochromatic

#141D53 #1F2E84 #2B3FB6 #4A5ED4 #7B8AE0

Accessibility & contrast

On white

8.44

#2B3FB6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#2B3FB6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3FB6

8.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3FB6	#FFFFFF	#000000	##FFFFFF
##2B3FB6	1.00	8.44	2.49	8.44
#FFFFFF	8.44	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054BA

Deuteranopia (green-blind)

#0047B4

Tritanopia (blue-blind)

#005F75

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #2b3fb6;
/* rgb */ color: rgb(43, 63, 182);
/* oklch */ color: oklch(43.5% 0.188 269.2);

Tailwind

colors: {
  custom: {
    50: '#7a74cd',
    500: '#2b3fb6',
    950: '#000000',
  },
}

SCSS

$custom: #2b3fb6;
$custom-light: #7a74cd;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3fb6",
  "rgb": {
    "r": 43,
    "g": 63,
    "b": 182
  },
  "hsl": {
    "h": 231.367,
    "s": 61.778,
    "l": 44.118
  },
  "oklch": {
    "l": 0.43453,
    "c": 0.18789,
    "h": 269.2
  },
  "luminance": 0.07446
}

Semantic roles & 50–950 ramp

primary

#2B3FB6

secondary

#C8BC75

accent

#CE43E5

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #2B3FB6

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

Preview Lab → · Contrast checker → · Palette generator →